Đáp án:
Giải thích các bước giải:
d,Ta có:$\frac{-7}{20}=$$\frac{-7.25}{20.25}$$=\frac{-175}{500}$
$\frac{-11}{25}$$=\frac{-11.20}{25.20}$$=\frac{-220}{500}$
⇒$=\frac{-220}{500}$<$=\frac{-175}{500}$
e,Ta có:/,.$\frac{-25}{75}$$=\frac{-25:25}{75:25}$$=\frac{-1}{3}$
$\frac{-12}{36}$$=\frac{-12:12}{36:12}$$=\frac{-1}{3}$
⇒$\frac{-1}{3}=$$\frac{-1}{3}$
g,$\frac{2}{3}$$=\frac{2.4}{3.4}$$=\frac{8}{12}$
$\frac{-4}{1}$$=\frac{-4.12}{1.12}$$=\frac{-48}{12}$
⇒$\frac{-48}{12}<$$\frac{8}{12}$
