Fractions

Adding Fractions Adding Mixed Numbers Subtracting Fractions Subtracting Mixed Numbers Multiplying Fractions Dividing Fractions
STUDY
PLAY
Adding Fractions
1. Find a common denominator
2. Whatever you do to the bottom, you do to the top. (or cross multiply to find the new numerators)
3. Add the numerators
4. Keep the denominators the same
You can also.......
a. draw a picture to help
Adding Mixed Numbers
1. Change the mixed number into an improper fraction by multiplying the denominator by the whole number. Then add the numerator in. Your denominator stays the same.
2. Find a common denominator.
3. Whatever you do to the bottom, you do to the top. (or cross multiply to find the new numerators)
4. Add the numerators
5. Keep the denominators the same
Subtracting Fractions
1. Find a common denominator.
2. Whatever you do to the bottom, you do to the top. (or cross multiply to find the new numerators)
3. Subtract the numerators
5. Keep the denominators the same
You can also.....
a. draw a picture to help
Subtracting Mixed Numbers
1. Change the mixed number into an improper fraction by multiplying the denominator by the whole number. Then add the numerator in. Your denominator stays the same.
2. Find a common denominator.
3. Whatever you do to the bottom, you do to the top. (or cross multiply to find the new numerators)
4. Subtract the numerators
5. Keep the denominators the same
Multiplying Fractions
1. Multiply the numerators.
2. Multiply the denominators.
Dividing Fractions
1. Leave it, Change it, Flip it (reciprocal)
2. Leave the 1st fraction alone.....change the division sign to multiplication sign.....write the reciprocal of the 2nd fraction.
3. Multiply the numerators.
4. Multiply the denominators.