把下面各分数约分12162128369048541391.-数学

题目简介

把下面各分数约分12162128369048541391.-数学

题目详情

把下面各分数约分
12
16
21
28
36
90
48
54
13
91
题型:解答题难度:中档来源:不详

答案

(1)class="stub"12
16
=class="stub"12÷4
16÷4
=class="stub"3
4

(2)class="stub"21
28
=class="stub"21÷7
28÷7
=class="stub"3
4

(3)class="stub"36
90
=class="stub"36÷18
90÷18
=class="stub"2
5

(4)class="stub"48
54
=class="stub"48÷6
54÷6
=class="stub"8
9

(5)class="stub"13
91
=class="stub"13÷13
91÷13
=class="stub"1
7

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