6/1x(5-3/2)=?8/7x7+8/3=?

问题描述:

6/1x(5-3/2)=?8/7x7+8/3=?

21.10又2/3过程6x5-(6x3)/2 = 30 -9 = 21
8+8/3=24/3+8/3=32/3=10(2/3)