Question

五分之四乘以四加五分之二乘以二加五分之一乘以十六，简便运算怎么做

Answer 1

五分之四乘以四加五分之二乘以二加五分之一乘以十六，简便运算怎么做
4/5x4+2/5x2+1/5x16
=4/5x4+4/5+1/5x4x4
=4/5x4+4/5+4/5x4
=4/5（4+1+4）
=4/5x9
=36/5
赶脚更麻烦！不如直接计算省事。
五分之四乘以四加五分之二乘以二加五分之一乘以十六
=16/5+4/5+16/5
=36/5
=7又5分之1

Answer 2

你好(•‿•)
4/5×4+2/5×2+1/5×16
=16/5+4/5+16/5
=36/5

Answer 3

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