(0.25+7/8)除以(1.75-7/8)等于多少?

问题描述:

(0.25+7/8)除以(1.75-7/8)等于多少?

(0.25+7/8)除以(1.75-7/8)
=(2/8+7/8)/(14/8-7/8)
=9/8/(7/8)
=9/7

9/8

(0.25+7/8)除以(1.75-7/8)
=9/8÷7/8
=9/7(即7分之9)