把下面的分数通分.-数学

题目简介

把下面的分数通分.-数学

题目详情

把下面的分数通分.
题型:解答题难度:中档来源:不详

答案

(1)class="stub"3
8
=class="stub"3×3
8×3
=class="stub"9
24

class="stub"5
12
=class="stub"5×2
12×2
=class="stub"10
24


(2)class="stub"7
10
=class="stub"7×11
10×11
=class="stub"77
110

class="stub"2
11
=class="stub"2×10
11×10
=class="stub"20
110


(3)class="stub"5
8
=class="stub"5×3
8×3
=class="stub"15
24

class="stub"2
3
=class="stub"2×8
3×8
=class="stub"16
24

class="stub"13
24


(4)1class="stub"2
5
=class="stub"7
5
=class="stub"7×9
5×9
=class="stub"63
45

3class="stub"5
9
=class="stub"32
9
=class="stub"32×5
9×5
=class="stub"160
45

2class="stub"8
15
=class="stub"38
15
=class="stub"38×3
15×3
=class="stub"114
45

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