Question

5/19×6/13+7/19×5/13解题过程？

Answer 1

解：5/19×6/13+7/19×5/13=5/19×6/13+5/19×7/13=5/19×(6/13+7/13)=5/19×1=5/19，运用乘法交换律，希望可以帮到你

Answer 2

5/19 × 6/13 + 7/19 × 5/13
=(5×6)/(19×13) + (7×5)/(19×13)
=30/(19×13) +35/(19×13）
=(30+35)/(19×13)
=65/(19×13）
=(13×5)/(19×13)
=5/19