(-4 1/7)-(-5 2/7) 7 2/3-3 3/6 有理数减法

问题描述:

(-4 1/7)-(-5 2/7) 7 2/3-3 3/6 有理数减法

(-4 1/7)-(-5 2/7)
=-4 1/7+5 2/7
=5 2/7-4 1/7
=1 1/7
7 2/3-3 3/6
=7 4/6-3 3/6
=4 1/6