A+B=3/5,A:B=3/8求A,B各是多少?

问题描述:

A+B=3/5,A:B=3/8求A,B各是多少?

A:B=3/8A=3/8B3/8B+B=3/511/8B=3/5B=3/5÷11/8B=24/55A=24/55X3/8=9/55