题目内容

化简比
pr:18

5
7
3
r
6.3:31p:
3
r
6h:15,
=(6h÷6):(15÷6),
=h:5;

5
5
h

=(
5
×65):(
5
h
×65),
=6小:61;

6.5:5,
=(6.5×1小):(5×1小),
=65:5小,
=(65÷5):(5小÷5),
=61:1小;

16:
5
h

=(16×h):(
5
h
×h),
=h5:5,
=(h5÷5):(5÷5),
=16:1.
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