`-5/7*2/11+9/7*(-5)/11+5/7`
`=-5/7*2/11+(-5)/7*9/11+5/7`
`=(-5/7)*2/11+(-5)/7*9/11+(-5/7)*(-1)`
`=(-5)/7*(2/11+9/11-1)`
`=(-5)/7*(11/11-1)`
`=(-5)/7*(1-1)`
`=(-5)/7*0`
`=0`
\(-\frac57.\frac{2}{11}+\frac97.\left(-\frac{5}{11}\right)+\frac57\)
\(=-\frac{10}{77}-\frac{45}{77}+\frac57\)
\(=-\frac{10}{77}-\frac{45}{77}+\frac{55}{77}\)
\(=\frac{-10-45+55}{77}\)
\(=\frac{0}{77}\)
\(=0\)
−75.112+79.(−115)+75
\(= - \frac{10}{77} - \frac{45}{77} + \frac{5}{7}\)
\(= - \frac{10}{77} - \frac{45}{77} + \frac{55}{77}\)
\(= \frac{- 10 - 45 + 55}{77}\)
\(= \frac{0}{77}\)
\(= 0\)
−75.112+79.(−115)+75
\(= - \frac{10}{77} - \frac{45}{77} + \frac{5}{7}\)
\(= - \frac{10}{77} - \frac{45}{77} + \frac{55}{77}\)
\(= \frac{- 10 - 45 + 55}{77}\)
\(= \frac{0}{77}\)
\(= 0\)
