快点简便运算八分之一乘5.3减0.25加3.7除以8

问题描述:

快点简便运算
八分之一乘5.3减0.25加3.7除以8

=1/8 *5.3-0.25+3.7*1/8
=1/8 *(5.3+3.7)-1/4
=9/8 -2/8
=7/8

八分之一乘5.3减0.25加3.7除以8
=1/8 *5.3-0.25+3.7*1/8
=1/8 *(5.3+3.7)-1/4
=9/8 -2/8
=7/8