Question

Tính: /TÍNH RÕ RÀNG/

5/12 + 1/6          1- 23/47          4/5 x 7/8          ❤8/5 : 1/4❤

Answer 1

\(\dfrac{5}{12}+\dfrac{1}{6}=\dfrac{5}{12}+\dfrac{2}{12}=\dfrac{5+2}{12}=\dfrac{7}{12}\)

Answer 2

\(\dfrac{5}{12}+\dfrac{1}{6}=\dfrac{5}{12}+\dfrac{2}{12}=\dfrac{7}{12}\)

\(1-\dfrac{23}{47}=\dfrac{47}{47}-\dfrac{23}{47}=\dfrac{24}{47}\)

\(\dfrac{4}{5}x\dfrac{7}{8}=\dfrac{4x7}{5x8}=\dfrac{28}{40}=\dfrac{7}{10}\)

\(\dfrac{8}{5}:\dfrac{1}{4}=\dfrac{8}{5}x\dfrac{4}{1}=\dfrac{32}{5}\)

Answer 3

\(\dfrac{8}{5}:\dfrac{1}{4}=\dfrac{8}{5}\times4=\dfrac{32}{5}\)

\(\dfrac{4}{5}\times\dfrac{7}{8}=\dfrac{4\times7}{5\times8}=\dfrac{28}{40}=\dfrac{14}{20}=\dfrac{7}{10}\)