Mathematics

Problem

Simplify the fractions: a.

\frac{12}{25} \times \frac{15}{28} \times \frac{35}{36}

\frac{10}{27} \times \frac{39}{56} \times \frac{28}{65}

\frac{2^2}{17} \times \frac{7^2}{9} \times \frac{1^{33}}{52}