Question

-21/8 + 17/14=

(kết quả ra phân số nhé)

 

Answer 1

\(\dfrac{-21}{8}+\dfrac{17}{14}=\dfrac{-147}{56}+\dfrac{68}{56}=\dfrac{-147+68}{56}=\dfrac{-79}{56}\)

Answer 2

Answer 3

Answer 4

\(\dfrac{-21}{8}+\dfrac{17}{14}=\dfrac{-294}{112}+\dfrac{136}{112}=\dfrac{-158}{112}=\dfrac{-79}{56}\)

Answer 5

\(\dfrac{-21}{8}+\dfrac{17}{14}=\dfrac{-147}{56}+\dfrac{68}{56}\\=\dfrac{\left(-147\right)+68}{56}=\dfrac{-79}{56}\)

Answer 6

-79/56

Answer 7

\(\dfrac{-79}{56}\)

tick cho mk

Answer 8

-79 / 56

Answer 9

\(\dfrac{-21}{8}+\dfrac{17}{14}\)

\(=\dfrac{-147}{56}+\dfrac{68}{56}\)

\(=\dfrac{-79}{56}\)