3/8×5/11+0.375×2又6/11-3除以3/8的简便运算

问题描述:

3/8×5/11+0.375×2又6/11-3除以3/8的简便运算

=3/8×5/11+3/8×2又6/11-3÷ 3/8
=3/8(5/11+2又6/11)-3×8/3
=3/8×3-8
=负的6又7/8