FRACTION PLEASE HELP

Question

Ammaar put 4/7 of the money he earned raking leaves in the bank. He spent 1/3 of the money on a book.

Create an expression with common denominators that can be used to find the difference between the fraction of money Ammaar put in the bank and the fraction he spent on the book.

Answer 1

Definitions:

1. Denominator- the bottom number of a fraction
2. Common Denominator- when all the bottom numbers of fractions in an equation are the same

Step One: Identify the denominators

4 _ 1

7 3

Step Two: Find the Least Common Multiple (LCM) Hint: Always start with the larger number to save time.

7: 7, 14, 21, 28 7 x 3 = 21

3: 3, 6, 9, 12, 15, 18, 21 3 x 7 = 21

Step 3: Multiply each fraction to get equivalent fractions with the LCM as the denominators.

4 x 3 ₌ 12 1 x 7 ₌ 7

7 x 3. 21 3 x 7 21

Step 4: Write out the final expression

12 _– 7

21 21