247 X 328 = 81016
35864:175= 35864/175
\(\dfrac{7}{5}x\dfrac{2}{5}=\dfrac{14}{25}\)
\(\dfrac{3}{4}+\dfrac{5}{4}:\dfrac{1}{4}x\dfrac{1}{2}=\dfrac{3}{4}+5x\dfrac{1}{2}=\dfrac{5}{2}\)
7/5 x 2/5 = 14/25
3/4 + 5/4 : 1/4 x 1/2 = 13/4
\(\dfrac{7}{5}\times\dfrac{2}{5}=\dfrac{7\times2}{5\times5}=\dfrac{14}{25}\)
\(\dfrac{3}{4}+\dfrac{5}{4}:\dfrac{1}{4}\times\dfrac{1}{2}=\dfrac{3}{4}+\dfrac{5}{4}\times4\times\dfrac{1}{2}=\dfrac{3}{4}+\dfrac{5}{4}\times2=\dfrac{3}{4}+\dfrac{5}{2}=\dfrac{13}{4}\)
`35864 : 175 = ` \(\dfrac{35864}{175}\)
` 247 \(\times\) 328 = 81016`
\(\dfrac{14}{25}\)
= \(\dfrac{13}{4}\)
= 204 (dư 64)
= 81016