Toán 13/37 . 5/12 – 7/37 . 13/6|+ -1/37 . 13/4 ( giải rõ dùm e vs ạ, e sắp nộp r) 16/10/2021 By Maya 13/37 . 5/12 – 7/37 . 13/6|+ -1/37 . 13/4 ( giải rõ dùm e vs ạ, e sắp nộp r)
$\dfrac{13}{37} . \dfrac{5}{12} – \dfrac{7}{37} . \dfrac{13}{6} + \dfrac{-1}{37} . \dfrac{13}{4}$ $= \dfrac{13}{37} . \dfrac{5}{12} – \dfrac{13}{37} . \dfrac{7}{6} + \dfrac{13}{37} . \dfrac{-1}{4}$ $= \dfrac{13}{37} ( \dfrac{5}{12} – \dfrac{7}{6} + \dfrac{-1}{4} )$ $= \dfrac{13}{37} . \dfrac{-5}{6}$ $= \dfrac{-65}{222}$ Trả lời
$\dfrac{13}{37} . \dfrac{5}{12} – \dfrac{7}{37} . \dfrac{13}{6} + \dfrac{-1}{37} . \dfrac{13}{4}$
$= \dfrac{13}{37} . \dfrac{5}{12} – \dfrac{13}{37} . \dfrac{7}{6} + \dfrac{13}{37} . \dfrac{-1}{4}$
$= \dfrac{13}{37} ( \dfrac{5}{12} – \dfrac{7}{6} + \dfrac{-1}{4} )$
$= \dfrac{13}{37} . \dfrac{-5}{6}$
$= \dfrac{-65}{222}$