Question

Subtract and express the differences in simplest form:

$\frac{11}{18}-\frac{4}{18}=\_\_\_$

Answer 1

• Step 1: As these are the like fractions, subtract the numerators and write the difference over the common denominator.

$\frac{11}{18}-\frac{4}{18}=\frac{11-4}{18}=\frac{7}{18}$

• There is no common factor of $7$ and $18$ other than $1$. Hence, the simplest form of $\frac{7}{18}$ is itself $\frac{7}{18}$.