Question

giúp mình với mình cần gấp

4/5(15+2/3) - 4/5(20+2/3)

Answer 1

4/5(15+2/3)-4/5(20+2/3)=188/15-6/155=1162/93

Answer 2

\(\frac{4}{5}\left(15+\frac{2}{3}\right)-\frac{4}{5}\left(20+\frac{2}{3}\right)\)

\(=\frac{4}{5}\left[\left(15+\frac{2}{3}\right)-\left(20+\frac{2}{3}\right)\right]\)

\(=\frac{4}{5}.\left(15+\frac{2}{3}-20-\frac{2}{3}\right)\)

\(=\frac{4}{5}.\left(-5\right)\)

\(=-4\)