Evaluate $\frac{3}{8}\times\frac{5}{7}$38×57.

Evaluate $\frac{6}{7}\times\frac{3}{11}$67×311.

Evaluate $\frac{4}{11}\times\frac{1}{10}$411×110.

Evaluate $\frac{7}{10}\times\frac{2}{9}$710×29.

Understand operations on fractions, decimals, percentages, and integers