Tính:a/ 7/5 : 2/3 b/ 6/7 : 5/8 c/ 3/4 : 2 d/ 4 : 1/2

Đáp án:

Giải thích các bước giải:

a)$\dfrac{7}{5}$ : $\dfrac{2}{3}$ = $\dfrac{7}{5}$ x $\dfrac{2}{3}$ = $\dfrac{21}{10}$

b)$\dfrac{6}{7}$ : $\dfrac{5}{8}$ = $\dfrac{6}{7}$ x $\dfrac{8}{5}$ = $\dfrac{48}{35}$

c)$\dfrac{3}{4}$ : 2 = $\dfrac{3}{4}$ x $\dfrac{1}{2}$ = $\dfrac{3}{8}$

d)4 : $\dfrac{1}{2}$ = $\dfrac{4}{1}$ x $\dfrac{2}{1}$ = $\dfrac{8}{1}$ = 8

$\dfrac{xin câu trả}{lời hay nhất}$