Question

105乘括号1/2+2/3+5分之一怎么算,简便计算

105乘括号1/2+2/3+5分之一怎么算,简便计算

Answer 1

105x（1/2+2/3+1/5）
=105x（15/30+20/30+6/30）
=105x41/30
=7x41/6
=287/6
=47又5/6
谢谢，请采纳

Answer 2

105×（1/2+2/3+1/5）
=105×1/2+105×2/3+105×1/5
=52.5+70+21
=143.5

Answer 3

105ⅹ(1/2+2/3+1/5)
=105x1/2+105x2/3+105x1/5
=52.5+70+21
=143.5

Answer 4

105x(1/2+2/3+1/5)
=105x1/2+105x2/3+105x1/5 （乘法分配律）
=52.5+70+21
=143.5