Operations with Fractions
By: Tyler
Adding Fractions/ Subtracting Fractions
Step 1: Make sure the bottom numbers (denominators) are the same by finding the least common denominators
Step 2: Add the top numbers (numerators) put the answer over the denominator
Step 3: Simplify if needed
Subtracting Fractions
- Same step as adding fractions
- Subtract the top two numbers (numerators) put the answer over the same denominator
- Simplify if needed
Example: 4/8 + 7/8=?
We'll the denominators are the same so the denominator is 8. The numerator is 11 because 4+7= 11. So the answer is 11/8. But we can't forget to simplify! 8 goes in to 11 once. The simplified improper fraction is 1 & 3/11.
Multiplying Fractions
- Multiply the two numerators (top numbers)
- Multiply the two denominators (bottom numbers)
- Simplify if needed
Dividing Fractions
- Keep the first fraction the same
- Change the division sign to a multipulcation sign
- Flip the second fraction