Question

Rewrite with common denominator then solve 7/9 subtract 2/3

Answer 1

The answer is 7/9 - 2/3 = 1/9

Answer 2

to write them both with a common denominator, we simply multiply one by the other's denominator, so let's proceed,

$\bf \cfrac{7}{9}\cdot \cfrac{3}{3}\implies \boxed{\cfrac{21}{27}}\qquad \qquad \qquad \cfrac{2}{3}\cdot \cfrac{9}{9}\implies \boxed{\cfrac{18}{27}}$