Adding like fractions
1/5+2/5
3/5
1/2+1/3
5/6
4/5-2/5
2/5
3/5-1/6
13/30
Denominator equals
Bottom Number
3/7+3/7
6/7
3/5+1/4
17/20
6/7-4/7
2/7
4/7-1/4
9/28
Common equals..
Same
4/8+3/8
7/8
1/6+2/5
17/30
5/10-2/10
3/10
5/7-2/5
11/35
Like fractions are
Fractions that have the same denominator
5/10+2/10
7/10
1/4+3/8
5/8
5/8-4/8
1/8
3/8-1/3
1/24
What ever you do to the bottom you have to do to the ...
TOP
12/20+7/20
19/20
3/10+3/5
9/10
19/21-9/21
10/21
1/3-1/5
2/15
When switching a unlike fraction to a like fraction what method do you use
Finding the Common Denominator