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用你喜欢的方法计算下面各题

学习时间:2026-04-08 05:05:12 阅读：3074

7/10×5/16÷32分之21 3/5+1/2×5分之四 2/13÷15/26×8分之五 (7/8+3/16)16分之139/17×1/7+17分之五÷7 3x(2/15+1/12)-2/5

最佳回答

机智的鱼

斯文的小鸭子

2026-04-08 05:05:12

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(1)7/10×5/16÷32分之21

=7/10×5/16×32/21

=1/3

(2)3/5+1/2×5分之四

=3/5+4/10

=6/10+4/10

=1

(3)2/13÷15/26×8分之五

=2/13×26/15×5/8

=(2×26×5)/(13×15×8)

=1/6

(4)(7/8+3/16)16分之13

(7/8+3/16)÷13/16

=(14/16+3/16)×16/13

=17/16×16/13

=17/13

（5）9/17×1/7+17分之五÷7

=9/17×/1/7+5/14×1/7

=1/7×(9/17+5/17)

=1/7×14/17

=2/17

（6）3×(2/15+1/12)-2/5

=3×2/15+3×1/12-2/5

=2/5+1/4-2/5

=1/4

最新回答共有2条回答

端庄的小天鹅
回复
2026-04-08 05:05:12

(1)7/10×5/16÷32分之21
=7/10×5/16×32/21
=1/3

(2)3/5+1/2×5分之四
=3/5+4/10
=6/10+4/10
=1

(3)2/13÷15/26×8分之五

=2/13×26/15×5/8
=(2×26×5)/(13×15×8)
=1/6

(4)(7/8+3/16)16分之13
(7/8+3/16)÷13/16
=(14/16+3/16)×16/13
=17/16×16/13
=17/13

（5）9/17×1/7+17分之五÷7
=9/17×/1/7+5/14×1/7
=1/7×(9/17+5/17)
=1/7×14/17
=2/17

（6）3×(2/15+1/12)-2/5
=3×2/15+3×1/12-2/5
=2/5+1/4-2/5
=1/4

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