Question

三分之四除以五加三分之二乘五分之四简便算法？

Answer 1

4/3÷5+2/3x4/5
=4/3x1/5+2/3x4/5
=1/3x4/5+2/3x4/5
=(1/3+2/3)x4/5
=1x4/5
=4/5
三分之四除以五加三分之二乘五分之四简便计算等于4/5

Answer 2

(4/3)÷5+(2/3)x(4/5)
=(4/5)ⅹ(1/3)+(2/3)x(4/5)
=(4/5)x[(1/3)+(2/3)]
=(4/5)x1
=4/5。