分数の計算 分数のたし算・引き算2
分数のたし算・ひき算2
◆次の計算をしましょう。
7
①
9
②
9
③
1
7 1 1
④
5
⑤
2
⑥
2
⑦
9
⑧
2
⑨
7
⑩
1
2
3 + 8 7
9
-
3
3 9
1 10 4 +
4 + 6
10
1 11
9
1
11 ‐ 2
1 4
9 2
+ 2 +
‐
‐ 3 9
5 6
‐ 1 7
6 12 5 14
5
+ 19 18
+ 14 15
+ 28 27
‐ 6 7
‐ 1 4
‐ 1 4
‐ 7 12
‐ 5 10
+ 13 15
3 ‐ 1
5 7
+ 1011
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分数の計算 分数のたし算・引き算2
答え
7
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
14 7
2
15
+ 8
+ 3
= 1
‐ 1
10 7
5 11 =
+ 1
‐ 3
5 2
12 3 5
7
=
=
= 109
70 70
70 70 70 =
117
10 77 109
36
8 5
70
‐ 5 52
60 60 60
=
9 20
17 76 27
11 70 7 26
29 12
= 32
= 7
= 17
36
7
20 20 20
30
+ 12 10
36
12
+ 16 21
36 36 36 36
44
‐ 18 9
36 36 36
5
= 9
20 20 20 20
= 11
70 70
126
‐ 55 60
= 76
27 27 27 27
18
+ 30 28
87
36 36 36 36
21
+ 16 15
= 52 14
9
9
‐ 11 5 14
+
‐ 1 4
10
1 9 ‐ 2 11
5 ‐ 6
2
6 3
1
+
+
4 5
3
4 9
4
14
7 18
24
‐ 10 9
+
=
=
+ =
14 14
40 38
=
= 4
= 7 12
1 19
=
10 5
=
15
+
‐
‐
‐
+ =
=
+ =
=
‐ =
20
+
=
70 70
‐ =
‐ =
‐ =
‐ =
=
+ =
= 39
60 20
42
‐
= 12
6 13 =
+ 1
‐ 7
= 6 27 9
3 28 =
+ 10
+ 2
70 19
) 20
( 109
= 1 39 ) 70
( 39
= 1 20
)
( 8
= 1 3 )
5 5
( 7
= 36
)
( 17
= )
36 ( 9
= 20
)
( 11
= )
70 2 ( 76
= 22
27 27
)
( 29
= )
12 ( 26
= 7
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