B Nirmala Shastry Solutions for Exercise 6: EXERCISE 5.6

By converting into simplest form, which one of the following fraction doesn't have a prime number in its denominator?

Circle the fractions which are in the simplest form and simplify the other fractions.

$\begin{array}{cccccccccccc}\frac{27}{36}& \frac{4}{9}& \frac{8}{26}& \frac{22}{24}& \frac{1}{2}& \frac{3}{12}& \frac{1}{4}& \frac{36}{42}& \frac{7}{11}& \frac{23}{115}& \frac{2}{9}& \frac{8}{16}\end{array}$

Stuti had $40$ toffees, Arunima had $60$ toffees and Alisha had $80$ toffees. After one week, Stuti was left with $20$ toffees, Arunima with $30$ and Alisha with $40$. What fraction of toffees did each have after a week? Check whether each consumed an equal fraction of their toffees?