Hello There!
[tex]\frac{18}{20}[/tex] as a decimal is 0.9
You can first reduce this fraction by dividing both the numerator and denominator by the Greatest Common Factor of 18 and 20 using 2.
18 ÷ 2 ≈ 9
20 ÷ 2 ≈ 10
We now have the fraction [tex]\frac{9}{10}[/tex]
Finally, we divide 9 by 10 and we get a quotient of 0.9
