Dividing Fractions

Question 1:

\frac{12}{49} \div \frac{36}{49}

\frac{{}^{1}12}{{}_{1}49} \times \frac{49^{1}}{36_{3}} = \frac{1}{3}

Question 2:

\frac{2}{21} \div \frac{20}{21}

\frac{{}^{1}2}{{}_{1}21} \times \frac{21^{1}}{20_{10}} = \frac{1}{10}

Question 3:

\frac{2}{45} \div \frac{22}{81}

\frac{{}^{1}2}{{}_{5}45} \times \frac{81^{9}}{22_{11}} = \frac{9}{55}

Question 4:

\frac{2}{35} \div \frac{8}{21}

\frac{{}^{1}2}{{}_{5}35} \times \frac{21^{3}}{8_{4}} = \frac{3}{20}