384x Filetype PPT File size 0.68 MB Source: www.fcusd.org
Add & Subtract Fractions
Add & Subtract Fractions
1. Find the common denominator.
2. Make equivalent fractions using
the new common denominator.
3. Add/sub the numerators.
Denominator stays the same.
4. Simplify/reduce.
5. Leave improper fractions as is.
Hooray!
Examples
Examples
1 3 5
8 6
9 20 29
24 24 24
2 8 2
7 3
9 3
8 6 2
7 3 4
9 9 9
Multiply Fractions & Mixed
Multiply Fractions & Mixed
#s
#s
1. Change any mixed #s into
improper fractions.
2. Multiply numerators.
3. Multiply denominators.
4. Simplify. (You can also simplify
before you multiply.)
5. Leave improper fractions as is.
Examples
Examples
1
3 5 15 3 5
8 6 48 3 16
2 1 10
4
5 11
21 102 42
1 5 11 11
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