Adding Fractions
When adding fractions with unlike denominators, you must find ______.
What is common denominator
When subtracting fractions, denominators must be ______.
What is common (the same).
Find a common denominator for each pair of fractions:
3/8 and 2/3
4/5 + 1/15
What is 13/15
1/3 - 1/6
what is 1/6
Find a common denominator for each pair of fractions:
1/6 and 4/3
What is 6 or 18
1/6 + 5/8
What is 19/24
3/5 - 1/3
What is 4/15
Find a common denominator for each pair of fractions:
3/7 and 1/2
What is 14
1/9 + 5/6
What is 17/18
17/18 - 2/3
What is 5/18
Find a common denominator for each pair of fractions:
5/12 and 3/5
What is 60
2/10 + 3/100
What is 23/100
5/4 - 5/8
What is 5/8
Find a common denominator for each pair of fractions:
3/8 and 9/20
What is 40