Question

Rut gon cac phan sop sau

d)\(\frac{2.5.13}{14.15}\)

e)\(\frac{9.6-9.3}{18}\)

f)\(\frac{17.5-17.2}{3-20}\)

Answer 1

\(d.\frac{2.5.13}{14.15}=\frac{2.5.13}{2.7.5}=\frac{13}{7}\)

\(e.\frac{9.6-9.3}{18}=\frac{9\left(6-3\right)}{9.2}=\frac{9.3}{9.2}=\frac{3}{2}\)

\(f.\frac{17.5-17.2}{3-20}=\frac{17\left(5-2\right)}{-17}=\frac{17.3}{-17}=-3\)

Answer 2

Thích chơi kiểu gạch này :v

d, \(\frac{2.5.13}{14.15}=\frac{2.5.13}{2.7.3.5}=\frac{13}{21}\)

e, \(\frac{9.6-9.3}{18}=\frac{54-27}{18}=\frac{27}{18}=\frac{3}{2}\)

f, \(\frac{17.5-17.2}{3-20}=\frac{17\left(5-2\right)}{-17}=\frac{17.3}{-17}=\frac{17.3}{-1.17}=\frac{3}{-1}=-3\)