Adding and Subtracting Fractions
1/4 + 1/4
2/4 or 1/2
2 * 1/2
1
What is a unit fraction?
A fraction with a 1 in the numerators spot and a denominator that is greater than 1
Harper grated 2/8 pound of cheese for tonight's dinner and 2/8 pound of cheese for tomorrows dinner. How much cheese did she grate in all?
4/8 pound or 1/2 pound
1 1/2
3/2
3/8 + 2/8
5/8
3 * 1/4
3/4
How do you express 4/10 as a sum of unit fractions?
1/10 + 1/10 + 1/10 +1/10
Messiah rides his bike 4/10 mile to the park. The basketball court is 2/10 of a mile less. How far is the park?
2/10 mi
2 1/2
5/2
9/12- 5/12
4/12 or 1/3
4 * 1/2
2
How do you express 19/20 as a product of unit fractions?
19 * 1/20
Owen uses 3/4 yard if fabric per chair. How much does he need for 2 chairs?
1 1/2 yards
11/3
3 2/3
37/45- 15/45
22/45
5 * 2/3
10/3 or 3 1/3
How would you express 8/10 as the sum of unit fractions?
1/8 +1/8 +1/8+1/8+1/8+1/8+1/8+ 1/8
1 4/5
22/5
4 2/5
9 8/10 -6 9/10
1 9/10
7 * 3/5
21/5 or 4 1/5
How would you express 10/10 as a product of unit fractions?
10 * 1/10
Lincoln volunteers 3/4 of an hour. Sydney volunteers 5 times more than Lincoln. How many hours did Sydney volunteer?
3 3/4
5 3/5
28/5