Question

Which is bigger 4/5 or 9/10

Answer 1

Well 4/5 is 80% and 9/10 is 90%
9/10 is bigger. :)

Answer 2

To make it easier, we can change a fraction to have the same denominator so we can compare

Least Common Denominator
5 × 1 = 5                                            10 × 1 = 10
5 × 2 = 10

Least common denominator is 10

$\frac{4*2}{5*2}$  and $\frac{9}{10}$
$\frac{8}{10}$   and    $\frac{9}{10}$

$\frac{9}{10}$ > $\frac{8}{10}$

We see that more area is shaded in $\frac{9}{10}$ than $\frac{8}{10}$

$\frac{9}{10}$ is bigger