② = ⑤ =
9 9
3 6
3 6 =
2 次の分数の分母と分子を3でわって、約分しましょう。
(うすい字や線はなぞりましょう。)
3 1 6
① = ④
6 2 =
③ = ⑥
⑤ =
6 4
⑥ 8 =
2
= 1 4
② =
6
③ 2 =
8 2
① 4
2 ④ =
① 例題
2 1 3
105
14
やくぶん
1 2
1 3
15
2 5
12 21
4 =
①
2 2
2 6
= ④ =
② =
6 3
4
8
6
2 8
⑤
2 次の分数の分母と分子を3でわって、約分しましょう。
(うすい字や線はなぞりましょう。)
3 1 3
① =
③ = ⑥ =
④ =
6 2
② = ⑤ =
9
6 6
③ 9 = ⑥ 6 =
② 確認
3 1 2
105
12
やくぶん
1 2 2 3
27
1 9
12 15
21
② = ⑤ =
6
3 2
①
6 2
2 2
= ④ =
8 4
6
8 4
2 次の分数の分母と分子を3でわって、約分しましょう。
(うすい字や線はなぞりましょう。)
3 1 3
① =
③ = ⑥ =
④ =
6 2
② = ⑤ =
9
6 3
③ 6 = ⑥ =
③ 確認
4 1 3
105
14
やくぶん
1 2 2 3
18
1 6
27 15
12 12
② = ⑤ =
4
① 4
2
2 6
= ④ =
6 4
8
2 次の分数の分母と分子を3でわって、約分しましょう。
(うすい字や線はなぞりましょう。)
3 9
① =
③ = ⑥ =
8
④ =
9
② = ⑤ =
9 6
6 3
③ 6 = ⑥ =
② 確認
3 1 2
105
12
やくぶん
1 3 2 3
12
3 4
15 27
10
12
=
4
⑬ 6 =
⑩ =
⑪ 4 =
⑥ =
8
④ 6 =
⑦ =
⑫ =
2
6
9 ⑭
⑤ =
③ 2 =
② 3 =
9
=
⑨ =
4 = 2
⑤ 定着
2
1 3
16
15
21
14 18
15
10
14
15 12
2421
10
10
= =
6 3
② 4 = ⑨ =
8
③ 3 = ⑩ =
④ 9 = ⑪ 6 =
8 4
⑤ = ⑫ =
6
⑥ 6 = ⑬ 9 =
⑦ 2 = ⑭ =
⑥ 定着
3
1 2
10
16
21
18 12
15
18
14
12 10
27 15
14
10
= =
4 2
② 3 = ⑨ =
6
③ 8 = ⑩ =
④ 6 = ⑪ 8 =
6 2
⑤ = ⑫ =
6
⑥ 9 = ⑬ 9 =
⑦ 4 = ⑭ =
⑦ 定着
2
1 2
12
18
24
18 10
14
15
14
15 12
24 10
18
10
= =
8 4
② 4 = ⑨ =
6
③ 9 = ⑩ =
④ 2 = ⑪ 9 =
6 2
⑤ = ⑫ =
8
⑥ 8 = ⑬ 8 =
⑦ 2 = ⑭ =
⑧ 定着
4
2 3
14
16
18
12 15
12
10
10
16 14
14 10
15
10
⑦ 6 = ⑭ =
4 8
⑥ = ⑬ =
⑤ = ⑫ =
8 6
6 2
④ = ⑪ 9 =
③ 6 = ⑩ =
② 2 = ⑨ =
8
= =
4 2
⑨ 定着
2
1 4
18
16
14
15 10
12 10
10
18 10
14 12
12
12
にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
8 2
= =
20 10
2
6 4
④ = ⑧ =
③ 2 =
⑦ =
② 3 = ⑥ =
9
= =
4
⑩ 仕上げ
18
15
14
15 12
2421
10
÷2
÷
÷4
÷
④
30 10
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
18 3
= =
6 4
= ⑧ =
③ 2 = ⑦ =
② 6 = ⑥ =
9
= =
6
⑪ 仕上げ
16
14
15
12 10
2724
18
÷3
÷
÷6
÷
④
28 14
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
24 6
= =
8 2
= ⑧ =
③ 6 = ⑦ =
② 2 = ⑥ =
4
= =
8
⑫ 仕上げ
16
14
20
16 14
2218
16
÷2
÷
÷4
÷
④
36 18
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
16 4
= =
9 9
= ⑧ =
③ 4 = ⑦ =
② 6 = ⑥ =
8
= =
6
⑬ 仕上げ
10
15
10
14 12
2616
24
÷2
÷
÷4
÷
④
28 14
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
16 4
= =
6 9
= ⑧ =
③ 6 = ⑦ =
② 2 = ⑥ =
8
= =
6
⑭ 仕上げ
14
15
10
24 22
2018
15
÷2
÷
÷4
÷
2 にあてはまる数を書きましょう。(各5点)
12 3
= =
32 16
④ 6 = ⑧ 9 =
③ 8 = ⑦ =
② = ⑥ =
8 6
① = ⑤ =
4
⑮ ⼒だめし
10
16
12
26 20
2415
15
÷2
÷
÷4
÷
2 にあてはまる数を書きましょう。(各5点)
16 4
= =
20 10
④ 4 = ⑧ 3 =
③ 8 = ⑦ =
② = ⑥ =
6 3
① = ⑤ =
9
⑯ ⼒だめし
14
18
15
20 14
2410
12
÷2
÷
÷4
÷
③ = ⑥ =
4
3 1 6 2
7
3 1 6 2
② = ⑤ = 3
9 3 9
④ =
6 2
3
5 7
2 次の分数の分母と分子を3でわって、約分しましょう。
(うすい字や線はなぞりましょう。)
3 1 6 2
① =
③ = ⑥ =
4 2
2
4
3 6
8
1 4 2
①
2 1 8 2
5
2 1 4 2
= ④ =
② = ⑤ =
6
① 例題
2 1 3
105
14
やくぶん
1 2 1 3
15
2 5
12 21
2 3 1
4
2 7
2 3 1
4
2 7
4 =
① 4
2 1 2 1
5
2 1 6 3
= ④ =
② =
6 3
4
3
2 8
6
2 8
⑤ 4
9 6
2 次の分数の分母と分子を3でわって、約分しましょう。
(うすい字や線はなぞりましょう。)
3 1 3 1
① =
③ = ⑥ =
④ =
6 2
② = ⑤ =
9 3
2 5
6 2 6 1
7
③ = ⑥ =
4
9 3 6
21
② 確認 答え
3 1 2
105
12
やくぶん
1 2 2 3
27
1 9
12 15
3 4 1
3
1 6
1 7 3
4
2 5
② = ⑤ =
6
3 2 1
①
6 3 2 1
5
2 1 2 1
= ④ =
8 4
6
7 8
3 4 2
6 4
2 次の分数の分母と分子を3でわって、約分しましょう。
(うすい字や線はなぞりましょう。)
3 1 3 1
① =
③ = ⑥ =
④ =
6 2
② = ⑤ =
9 3
4 5
6 2 3 1
4
③ = ⑥ =
9
6 2
③ 確認 答え
4 1 3
105
14
やくぶん
1 2 2 3
18
1 6
27 15
1 2 3
7
1 4
1 4 2
9
4 5
12 12
② = ⑤ =
4
2 4 2
①
2 1 5
5
2 1 6 3
= ④ =
6 3
4
4
2 8 4
4 6
2 次の分数の分母と分子を3でわって、約分しましょう。
(うすい字や線はなぞりましょう。)
3 1 9 3
① =
③ = ⑥ =
8
④ =
9 3
② = ⑤ =
9 3 6
4 9
6 2 3 1
2
③ = ⑥ =
5
6 2
② 確認 答え
3 1 2
105
12
やくぶん
1 3 2 3
12
3 4
15 27
3 4 1
4
5 6
1 2 2
5
4 9
10
12
= = 7
4 2
3 1 4
② = ⑨ =
9 3 5
2 1 7
③ = ⑩ =
9 8
④ 6 = 2 ⑪ 4 = 2
5 5
8 4 4 2
⑤ = ⑫ =
5 6
⑥ = ⑬ =
8
3
2 1 6 2
7
9 3 5
⑦ = ⑭ = 7
5
⑤ 定着 答え
2
1 3
16
15
21
14 18
15
10
14
15 12
24 21
10
10
7
4 5
7 8
2 5
4 5
2 3
1 8
3 5
2 7
5 7 1
9 2 5
= = 7
6 3
4 1 5
② = ⑨ =
8 2 6
3 1 5
③ = ⑩ =
4 9
④ 9 = 3 ⑪ 6 = 3
5 7
8 4 4 2
⑤ = ⑫ =
9 6
⑥ = ⑬ =
5
3
6 3 9 3
7
2 1 5
⑦ = ⑭ = 9
8
⑥ 定着 答え
3
1 2
10
16
21
18 12
15
18
14
12 10
27 15
14
10
7
5 6
1 4
5 9
3 7 3
5
4 9
2 3
3 5
1 8
3 7 5 9
= = 7
4 2
3 1 4
② = ⑨ =
6 2 5
8 4 5
③ = ⑩ =
5
④ 6 = 3 ⑪ 8 = 4
7 9
6 2 2 1
⑤ = ⑫ =
5 6
⑥ = ⑬ =
4
3
9 3 9 3
8
4 2 5
⑦ = ⑭ = 9
9
⑦ 定着 答え
2
1 2
12
18
24
18 10
14
15
14
15 12
24 10
18
10
7
4 5
4 5
5 12
4 9 3
7
2 5
1 3
3 4
2 9
3 8
5 9
12
= = 5
8 4
4 2 7
② = ⑨ =
6 3 8
9 3 5
③ = ⑩ =
5 7
④ 2 = 1 ⑪ 9 = 3
6 5
6 3 2 1
⑤ = ⑫ =
5 8
⑥ = ⑬ =
7
4
8 4 8 4
9
2 1 5
⑦ = ⑭ = 6
8
⑧ 定着 答え
4
2 3
14
16
18
12 15
12
10
10
16 14
14 10
15
10
5
7 8
3 5
5 7
3 5 1
6
3 5
1 4
4 7
1 8
4 9 5 6
⑦ = ⑭ = 5 8
7
6 3 4
3
4 2 8 4
⑥ = ⑬ =
9
⑤ = ⑫ =
8 4 6
3
6 4
6 3 2 1
④ = 5 ⑪ 9 =
6 3 6
③ = ⑩ =
5 7
2 1 5
② = ⑨ =
8 4 9
= = 5
4 2
⑨ 定着 答え
2
1 4
18
16
14
15 10
12 10
10
18 10
14 12
12
12
5
5 9
3 5
6 7
3 4 5
6
3 4
1 3
2 9
3 8
4 7 4 5
④
20 10
5
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
8 2
= =
6 2 4 2
= ⑧ =
5
2 1 7
③ = ⑦ =
9 8
3 1 4
② = ⑥ =
9 3 5
= = 7
4 2
⑩ 仕上げ 答え
18
15
14
15 12
2421
10
÷2
÷
÷4
÷ 4
2
4
5
2
1 3
1 9
2 5
7
4 5
7 8 2 5
④
30 10
7
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
18 3
= =
6 3 4 2
= ⑧ =
9
2 1 8
③ = ⑦ =
8 9
6 2 5
② = ⑥ =
9 3 6
= = 5
6 3
⑪ 仕上げ 答え
16
14
15
12 10
2724
18
÷3
÷
÷6
÷ 6
3
6
5
3
2 3
1 8
3 7
5
5 6
8 9 2 9
④
28 14
7
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
24 6
= =
8 4 2 1
= ⑧ =
8
6 3 9
③ = ⑦ =
8
2 1 7
② = ⑥ =
4 2 8
= =
8 4
⑫ 仕上げ 答え
16
14
20
16 14
2218
16
÷2
÷
÷4
÷ 4
2
12
7
3 8
4 7
10
7 8
9 11
1 8 1
2
4 10
11
④
36 18
5
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
16 4
= =
9 3 9 3
= ⑧ =
8
4 2 8
③ = ⑦ =
5
6 3 6
② = ⑥ =
8 4 7
= = 5
6 3
⑬ 仕上げ 答え
10
15
10
14 12
2616
24
÷2
÷
÷4
÷ 4
2
8
9
2 5
3 5
5
6 7
8 13
3 8 3
4 3
13
④
28 14
5
2 にあてはまる数を書きましょう。(うすい字はなぞりましょう。)
16 4
= =
6 2 9 3
= ⑧ =
5
6 3 9
③ = ⑦ =
7
2 1
② = ⑥ =
8 4
= = 5
6 2
⑭ 仕上げ 答え
14
15
10
24 22
2018
15
÷2
÷
÷4
÷ 4
2
8
7
3 7
2 5
5
11 12
9 10
3 5 1
4 2
10 11 12
④
32 16
8
2 にあてはまる数を書きましょう。(各5点)
12 3
= =
6 3 9 3
= ⑧ =
5
8 4 5
③ = ⑦ =
5 6
6 3
② = ⑥ =
8 4
① = ⑤ = 4
4 2
⑮ ⼒だめし 答え
10
16
12
26 20
2415
15
÷2
÷
÷4
÷ 4
2
6
8
4 5
3 8
4
10 13
5 6
3 5 3
4 2
10 13
4
2 にあてはまる数を書きましょう。(各5点)
16 4
= =
20 10
④ = ⑧ =
9 7
4 2 3 1
8 4 5
③ = ⑦ =
② = ⑥ =
6 2
3 1 7
① = ⑤ =
9 3 5
⑯ ⼒だめし 答え
14
18
15
20 14
2410
12
÷2
÷
÷4
÷ 4
2
8
5
4 7
2 9
5
7 10
5 12
1 4 1
2 3
10
12