脱式计算:5/101×1/2÷2/5 12÷14/4×7/8

问题描述:

脱式计算:5/101×1/2÷2/5 12÷14/4×7/8

5/101×1/2÷2/5
=5/202x5/2
=25/404
12÷14/4×7/8
=24/7x7/8
=3