Question

lại cớ hội nx nhé nghĩ mãi mơi ra .

(4/5+1/2).(3/13-8/13)

ai nhanh thì đc

Answer 1

\(\left(\frac{4}{5}+\frac{1}{2}\right).\left(\frac{3}{13}-\frac{8}{13}\right)\)

\(=\left(\frac{8}{10}-\frac{5}{10}\right).\left(-\frac{5}{13}\right)\)

\(=\frac{3}{10}.\left(-\frac{5}{13}\right)\)

\(=-\frac{15}{130}=-\frac{3}{26}\)

Answer 2

\(\left(\frac{4}{5}+\frac{1}{2}\right).\left(\frac{3}{13}-\frac{8}{13}\right)\)

\(=\frac{13}{10}.\frac{-5}{13}=\frac{-65}{130}\)