Question

5÷7分之5-7分之5×5分之1 简便计算

7分之9÷6分之11＋9分之2×11分之6

16分之5＋（16分之7-4分之1）÷2分之1
要详细

Answer 1

5÷5/7-5/7×1/5
=5×7/5-5/7×1/5
=7-1/7
=6又6/7或
=48/7

9/7÷11/6+2/9×6/11
=7/9×6/11+2/9×6/11
=6/11×（7/9+2/9）
=6/11

5/16+（7/16-1/4）÷1/2
=5/16+（7-4）/16×2/1
=5/16+6/16
=11/16

Answer 2

5x7/5-5/7x1/5=7-1/7=48/7就是把5除以7分之5变成5乘以5分之7

追问

剩下的题目呢？

追答

9/7x6/11+2/9x6/11=6/11x（9/7+2/9）
5/16+7/16x2-1/4x2=5/16+14/16-8/16=11/16