Question

6-(7/6-9/5)÷(2/15)用分数计算

数学简便计算
6÷7分之6－7分之6÷6 （9分之5＋15分之2）÷15分之2
10×8分之1＋8分之7×2 [(2-4分之3)×2]÷6分之5
要简便计算的啊

Answer 1

6÷7分之6－7分之6÷6
=6x7/6-6/7x1/6
=7-1/7
=48/7
（9分之5＋15分之2）÷15分之2
=5/9x15/2+2/15x15/2
=15/6+1
=21/6
10×8分之1＋8分之7×2
=10/8+14/8
=3
[(2-4分之3)×2]÷6分之5
=(4-3/2)x6/5
=4x6/5-3/2x6/5
=24/5-9/5
=15/5
=3