Question

How many more unit squares in the figure must be shaded so that the fraction of shaded squares becomes$\frac{7}{9}$?

Answer 1

Total number of unit squares is 18.

⇒ Fraction of shaded squares is $\frac{7}{9}$

So, let's find its equivalent fraction with denominator 18

→ According to the question,
⇒ $\frac{7}{9}=\frac{7\times 2}{9\times 2}=\frac{14}{18}$​

⇒ $\frac{14}{18}=\frac{Numberofsquaresshaded}{Totalnumberofsquares}$
⇒ Out of these 14 squares 6 are shaded.
∴ We have to shade 8 more squares.