The document provides steps for subtracting and adding fractions. It explains that to subtract fractions, you find a common factor, cross multiply the terms, and then subtract them. The difference is then divided by the product of the common factors to simplify the fraction. For adding fractions, the same steps are followed but the terms are added instead of subtracted. Two examples demonstrating these steps are provided.

1. SUBTRACTING (-) AND ADDING(+) FRACTIONS Aaron Martin-Green EDU 290

2. 9 5 ___ __________ __________ 16 12

3. STEP ONE: COMMON FACTOR 9 5 ___ __________ __________ 16 12 4 3 4

4. STEP TWO: CROSS MULTIPLY AND SUBTRACT 9 5 __________ __________ 12 16 4 3 (9x3)-(5x4)= 7

5. STEP THREE: FIND THE DENOMINATOR 9 5 __________ __________ ___ 16 12 4 4 3 (9x3)-(5x4)=7 ___ 4x4x3 = 48

6. HERE IS ANOTHER EXAMPLE

7. 11 3 + __________ __________ 15 20

8. STEP ONE: COMMON FACTOR 11 3 + __________ __________ 15 20 3 4 5

9. STEP TWO: CROSS MULTIPLY AND ADD 11 3 __________ __________ 20 15 3 4 (11x4)+(3x3)= 53

10. STEP THREE: FIND THE DENOMINATOR 11 3 + __________ __________ 15 20 3 5 4 (11x4)+(3x3)= 53 __ 5x3x4 = 60