www.5129.net > 3/8+5/12%1/6用分数表示。

3/8+5/12%1/6用分数表示。

=9/24+10/24-4/24 =15/24

3-8/9+5/6×3/16 =2又1/9+5/32 =2又32/288+45/288 =2又...

分数相乘:约分后, 分子的积做分子,分母的积做分母, 5/12×3/8 =5/4×1/8 =...

用分数表示结果 3/8+4/5-1/3 =47/40-1/3 =101/120

5/8+3/10 =25/40+12/40 =37/40

8/7和5/3分别乘它们的分母也要乘分子能约分要约分结果得40/59

12/5-3/11-8/11-4/5 =12/5-4/5-(3/11+8/11) =8/5-1 ...

3/12 1/4 6/12 3/6 8/10 4/5 直接划...

5/8+4/5-3/8+1/5 =(5/8-3/8)+(4/5+1/5) =1/4+1 =1又4分之...

3/8+19/32-1/8-1/32 =(3/8-1/8)+(19/32-1/32) =2/8+...

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