Question

[꧁༺ác๖ۣۜmộng๖ۣۜтєαм๖ۣۜвóиɢ๖ۣۜđêм๖ۣۜт...]

2 : \(\dfrac{2}{7}\)+\(\dfrac{12}{5}\)                                        ;                                       \(\dfrac{5}{16}\) : [\(\dfrac{5}{8}\)+\(\dfrac{3}{24}\)]

Answer 1

[Ħäńᾑïě🧡♏]

\(2:\dfrac{2}{7}+\dfrac{12}{5}=2.\dfrac{7}{2}+\dfrac{12}{5}=7+\dfrac{12}{5}=\dfrac{47}{5}\)

\(\dfrac{5}{16}:\left[\dfrac{5}{8}+\dfrac{3}{24}\right]=\dfrac{5}{16}:\dfrac{3}{4}=\dfrac{5}{16}.\dfrac{4}{3}=\dfrac{5}{12}\)

Answer 2

[Nguyễn Lê Phước Thịnh]

\(2:\dfrac{2}{7}+\dfrac{12}{5}=7\dfrac{12}{5}=\dfrac{47}{5}\)

\(\dfrac{5}{16}:\left(\dfrac{5}{8}+\dfrac{3}{24}\right)=\dfrac{5}{16}:\dfrac{3}{4}=\dfrac{5}{16}\cdot\dfrac{4}{3}=\dfrac{20}{48}=\dfrac{5}{12}\)