Much like comparing fractions, adding fractions requires LCM to provide the same basis of addition. When adding fractions, the only part that is actually added together are the numerators.
For example:
Since , multiply the numerator of the first fraction by 9.
Since , multiply the numerator of the second fraction by 2.
For example:
Since , multiply the numerator of the first fraction by 9.
Since , multiply the numerator of the second fraction by 2.