Answer
a $\frac{37}{2}$
b $\frac{20}{3}$
c $\frac{109}{10}$
d $\frac{21}{5}$
Work Step by Step
a $5\frac{2}{7}=\frac{7\times5+2}{7}=\frac{37}{2}$
b $6\frac{2}{3}=\frac{6\times3+2}{3}=\frac{20}{3}$
c $10\frac{9}{10 }=\frac{10\times10+9}{10}=\frac{109}{10}$
d $4\frac{1}{5}=\frac{4\times5+1}{5}=\frac{21}{5}$