Adding and Subtracting Fractions
Russ has 2 jars of glue. One jar is ⅕ full. The other jar is ⅖ full. What equation would tell me the total amount of glue he has?
2/5 + 1/5 = ?
Lamar’s mom sells sports equipment online. She sold 9/10 of the sports equipment. Is this a way 9/10 can be written as a sum of fractions?
4/10+3/10+1/10+1/10+1/10
No, this equals 10/10 or 1.
2/8-⅛=⅜
Incorrect
2 3/4 + 1 1/4
4
5/8+2/8
7/8
Gertie ran ¾ mile during PE. Sarah ran 2/4 mile during the same class. How much farther did Gertie run than Sarah?
Gertie ran 1/4 mile farther than Sarah.
Lamar’s mom sells sports equipment online. She sold 9/10 of the sports equipment. Is this a way 9/10 can be written as a sum of fractions?
4/10+1/10+1/10+3/10
Yes, it equals 9/10.
⅘+⅕=5/5
Correct
1 4/6 + 2 3/6
4 1/6
8/10 - 3/10
5/10 or 1/2
In a survey, 6/10 of the students chose Saturday and 1/10 chose Monday as their favorite day of the week. What fraction shows the students who chose Saturday or Monday as their favorite day? (Use a model to help answser!)
7/10 of the students chose Saturday or Monday as their favorite day.
Lamar’s mom sells sports equipment online. She sold 9/10 of the sports equipment. Is this a way 9/10 can be written as a sum of fractions?
2/10+2/10+2/10+2/10
2/10+2/10+2/10+2/10
No, this equals 8/10.
4/6+⅙=5/12
Incorrect. What was the mistake?
3 5/6 - 2 3/6
1 2/6
3/12 + 4/12
7/12
Bella brought 8/10 gallon of water on a hiking trip. She drank 6/10 gallon of water. How much water is left?
2/10 or 1/5 of her water is left.
Lamar’s mom sells sports equipment online. She sold 9/10 of the sports equipment. Is this a way 9/10 can be written as a sum of fractions?
3/10+2/10+3/10+1/10
Yes it equals 9/10.
6/12-4/12=2/12
Correct
5 7/12 - 2 1/12
3 6/12 or 3 1/2
4/5 + 4/5
1 3/5
A painter mixed ¼ quart of red paint with ¾ quart of blue paint to make purple paint.
How much paint did the painter make?
1 full quart of paint
Lamar’s mom sells sports equipment online. She sold 9/10 of the sports equipment. Is either of these a way 9/10 can be written as a sum of fractions?
1/10+1/10+1/10+1/10+2/10
2/10+2/10+2/10+3/10
Yes, the second one.
The first one is 6/10
7/9-2/9=9/9
Incorrect.
5 4/8 + 3 5/8
9 1/8
8/12 - 2/12
6/12 or 1/2