Question

9/7:7/8+2^3.2-7/4:5/8

Answer 1

`9/7 : 7/8 + 2^3 . 2 - 7/4 : 5/8`

`= 9/7 . 8/7 + 2^4 - 7/4 . 8/5`

`= 72/49 + 16 - 56/20`

`= 72/49 + 16/1 - 14/5`

`= 72/49 + 784/49 - 14/5`

`= 856/49 - 14/5`

`= 4280/245 - 686/245`

`= 3594/245`

`#` `\text{DKhanhhqlv}`

Answer 2

\(\dfrac{9}{7}:\dfrac{7}{8}+2^3.2-\dfrac{7}{4}:\dfrac{5}{8}\\ =\dfrac{72}{49}+8.2-\dfrac{14}{5}\\ =\dfrac{72}{49}+16-\dfrac{14}{5}\\ =\dfrac{856}{49}-\dfrac{14}{5}\\ =\dfrac{3594}{245}\)