Toán 1/20-2 -1-1/4 35.3/14 (-11/50).(-25/11) 02/12/2021 By Jasmine 1/20-2 -1-1/4 35.3/14 (-11/50).(-25/11)
$\frac{1}{20}$ -2 = $\frac{1}{20}$ – $\frac{40}{20}$ =$\frac{-39}{20}$ -1-$\frac{1}{4}$ =$\frac{-4}{4}$ – $\frac{1}{4}$ = $\frac{-5}{4}$ 35.$\frac{3}{14}$ = $\frac{105}{14}$ $\frac{-11}{50}$ . $\frac{-25}{11}$ = $\frac{275}{550}$ = $\frac{1}{2}$ Trả lời
$\dfrac{1}{20}-2$ $ = \dfrac{1-40}{20}$ $ = \dfrac{-39}{20}$ $-1-\dfrac{1}{4} = \dfrac{-5}{4}$ $35.\dfrac{3}{14} = \dfrac{105}{4}$ $\dfrac{-11}{50}.\dfrac{-25}{11}$ $ = \dfrac{1}{2}$ Trả lời
$\frac{1}{20}$ -2 = $\frac{1}{20}$ – $\frac{40}{20}$ =$\frac{-39}{20}$
-1-$\frac{1}{4}$ =$\frac{-4}{4}$ – $\frac{1}{4}$ = $\frac{-5}{4}$
35.$\frac{3}{14}$ = $\frac{105}{14}$
$\frac{-11}{50}$ . $\frac{-25}{11}$ = $\frac{275}{550}$ = $\frac{1}{2}$
$\dfrac{1}{20}-2$
$ = \dfrac{1-40}{20}$
$ = \dfrac{-39}{20}$
$-1-\dfrac{1}{4} = \dfrac{-5}{4}$
$35.\dfrac{3}{14} = \dfrac{105}{4}$
$\dfrac{-11}{50}.\dfrac{-25}{11}$
$ = \dfrac{1}{2}$