Multiplying Fractions

Question 1:

\frac{9}{20} \times \frac{25}{63}

\frac{{}^{1}9}{{}_{4}20} \times \frac{25^{5}}{63_{7}} = \frac{5}{28}

Question 2:

\frac{30}{49} \times \frac{7}{12}

\frac{{}^{5}30}{{}_{7}49} \times \frac{7^{1}}{12_{2}} = \frac{5}{14}

Question 3:

\frac{16}{27} \times \frac{45}{88}

\frac{{}^{2}16}{{}_{3}27} \times \frac{45^{5}}{88_{11}} = \frac{10}{33}

Question 4:

\frac{27}{88} \times \frac{16}{45}

\frac{{}^{3}27}{{}_{11}88} \times \frac{16^{2}}{45_{5}} = \frac{6}{55}