Add and Subtract Fractions with Different Denominators: example 4.66

Convert $\frac{8}{15}$ and $\frac{11}{24}$ to equivalent fractions with denominator $120,$ their LCD.

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Change to equivalent fractions with the LCD:

$\frac{13}{24}$ and $\frac{17}{32},$ LCD $96$

How did it go?

	The LCD is 120. We will start at Step 2.
Find the number that must multiply 15 to get 120.
Find the number that must multiply 24 to get 120.
Use the Equivalent Fractions Property.
Simplify the numerators and denominators.

	The LCD is 120. We will start at Step 2.
Find the number that must multiply 15 to get 120.
Find the number that must multiply 24 to get 120.
Use the Equivalent Fractions Property.
Simplify the numerators and denominators.