e) $\frac{- 8}{18} + \frac{- 15}{27}$

Question

e) $\frac{- 8}{18} + \frac{- 15}{27} = \frac{- 4}{9} + \frac{- 5}{9} = \frac{- 4 + (- 5)}{9} = \frac{- 9}{9} = - 1$

Answer 1

Trả lời:

Giải bởi Vietjack

e) $\frac{- 8}{18} + \frac{- 15}{27} = \frac{- 4}{9} + \frac{- 5}{9} = \frac{- 4 + (- 5)}{9} = \frac{- 9}{9} = - 1$

e) −818+−1527<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mo>−</mo><mn>8</mn></mrow><mn>18</mn></mfrac><mo>+</mo><mfrac><mrow><mo>−</mo><mn>15</mn></mrow><mn>27</mn></mfrac></math>