Find the common denominator
2/3 and 1/6
4/6 and 1/6
8/12
2/3
1/5 + 3/4
19/20
1 5/12 + 3 3/4
5 1/6
There are 18 students in your class. Six of the students pack their lunch. In simplest form, what fraction of the students in your class pack their lunch?
1/3
5/6 and 3/4
10/12 and 9/12
2/10
1/5
6/8 - 7/10
1/20
3 1/2 + 5/12
3 11/12
A mint plant grows 7/8 inch in 1 week and 13/16 inch the next week. Use a common denominator to write an equivalent fraction for each fraction.
14/16 and 13/16
8/21 and 9/21
12/4
3
11/12 + 3/5
91/60
9 7/20 - 1 3/5
7 3/4
Your friend buys 1/8 pound of green lentils and 3/4 pound of brown lentils. What fraction of a pound of lentils does she buy?
7/8 pound
3/8 and 5/11
33/88 and 40/88
20/15
4/3 or 1 1/3
5/6 - 1/4 - 3/12
1/3
6 - 4 3/4
1 1/4
You eat 1/12 of a vegetable casserole. Your friend eats 1/6 of the same casserole. How much more does your friend eat than you?
1/12
3/7 and 2/9
27/63 and 14/63
5/100
1/20
2/9 + 4/3 + 5/9
19/9 or 2 1/9
12 5/6 - 7 3/10
5 8/15
You volunteer 5 3/4 hours in 1 month. You spend 3 1/3 hours volunteering at an animal shelter. You spend the remaining hours picking up litter on the side of the road. How many hours do you spend picking up litter?
2 5/12 hours.