Verified Answer :

\(99:3=(90+9):3=(90:3)+(9:3)=30+3=\boxed{33}\\\\48:3=(30+18):3=(30:3)+(18:3)=10+6=\boxed{16}\\\\4\times5\frac{3}{7}=4\times\frac{5\cdot7+3}{7}=4\times\frac{38}{7}=\frac{4\times38}{7}=\frac{152}{7}=\boxed{21\frac{5}{7}}\)

preti8

Answer:

21 and 5/7

Look at the top answer for a better explanation. Mines isn't the best. :)

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