Question

\(\frac{-9}{22}\)+\(\frac{5}{31}\)+\(\frac{-13}{22}\)+\(0,5\)+\(2\frac{26}{31}\)

 

Answer 1

\(-\frac{9}{22}+\frac{5}{31}+\frac{-13}{22}+\frac{88}{31}+\frac{1}{2}\)

\(=-1+3+\frac{1}{2}\)

\(=2+\frac{1}{2}\)

\(=\frac{5}{2}\)

Answer 2

= \(\left(\frac{-9}{22}+\frac{-13}{22}\right)+\left(\frac{5}{31}+2\frac{26}{31}\right)+0,5\)

= \(-1+3+0,5\)

= \(2+0,5\)

= \(2,5\)

k mik nhé

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