Multiplying Fractions

Question 1:

\frac{7}{72} \times \frac{9}{77}

\frac{{}^{1}7}{{}_{8}72} \times \frac{9^{1}}{77_{11}} = \frac{1}{88}

Question 2:

\frac{8}{15} \times \frac{5}{8}

\frac{{}^{1}8}{{}_{3}15} \times \frac{5^{1}}{8_{1}} = \frac{1}{3}

Question 3:

\frac{7}{18} \times \frac{36}{49}

\frac{{}^{1}7}{{}_{1}18} \times \frac{36^{2}}{49_{7}} = \frac{2}{7}

Question 4:

\frac{5}{18} \times \frac{9}{10}

\frac{{}^{1}5}{{}_{2}18} \times \frac{9^{1}}{10_{2}} = \frac{1}{4}