五分之四乘四加五分之二乘二加五分之一乘十六 简便计算

2024-12-02 09:51:38
推荐回答(1个)
回答1:

4/5*4+2/5*2+1/5*16
=1/5*16+1/5*4+1/5*16
=1/5*(16+4+16)
=36/5