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Decomposing Fractions
Adding Fractions
Subtracting Fractions
Number Stories
100
Decompose 4/5 into unit fractions.
1/5 + 1/5 + 1/5 + 1/5 = 4/5
100
4/8 + 3/8 =
7/8
100
11/13 - 7/13 =
4/13
100
Use the table on the class website to help you solve this problem. Martha wants to go to the amusement park. She is going to go with her parents. How much will it cost for Martha and her parents to go to the amusement park in one car and buy tickets and food for each person online? Write a number model with an unknown and solve.
Number Model: 22 + (13*3) + (49*3) = x ; Answer: $208
200
Decompose 7/9
1/9 + 6/9 = 7/9 ; 4/9 + 3/9 = 7/9 ; 3/9 + 3/9 + 1/9 = 7/9
200
1 3/5 + 3/5 =
2 1/5 or 11/5
200
4 and 3/5 - 2 and 1/5 =
2 and 2/5
200
Use the table on the class website to help you solve this problem. Martha wants to go to the amusement park. She is going to go with her parents. How much will it cost for Martha and her parents to go to the amusement park in one car and buy tickets and food for each person at the park? Write a number model with an unknown and solve.
Number Model: 25 + (19*3) + (64*3) = x ; Answer: $274
300
Decompose 10/8 into unit fractions.
1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 +1/8 + 1/8 = 10/8
300
4 7/10 + 8 3/10 =
13
300
7 and 4/9 - 3 6/9 =
34/9 or 3 and 7/9
300
Use the table on the class website to help you solve this problem. Martha wants to go to the amusement park with her 4 friends and parents. How much will it cost for Martha, her 4 friends, and her parents to go to the amusement park in one car and buy tickets and food for each person online? Write a number model with an unknown and solve.
Number Model: 22 + (13*7) + (49*7) = x ; Answer: $456
400
Decompose 1 and 4/7.
7/7 + 4/7 = 1 and 4/7 ; 5/7 + 6/7 = 11/7
400
Emily ate 3/7 of a pie. AiVy ate 2/7 of the same pie. How much did they eat in all?
5/7 of the pie
400
Miss L had 7/10 of a pizza. She ate 4/10 of the pizza. How much pizza is left?
3/10
400
Use the table on the class website to help you solve this problem. Martha wants to go to the amusement park with her 4 friends and parents. How much will it cost for Martha, her 4 friends, and her parents to go to the amusement park in one car and buy tickets and food for each person at the park? Write a number model with an unknown and solve.
Number Model: 25 + (19*7) + (64*7) = x ; Answer: $606
500
Decompose 1 and 9/12 in two ways.
11/12 + 10/12 = 1 and 9/12 ; 12/12 + 6/12 + 3/12 = 1 and 9/12
500
Declan and Jake were racing. Declan ran 2 and 4/7 miles. Jake ran 2 and 5/7 miles. How far did they run in all.
5 and 2/7 miles
500
Mia drew a line that was 6 and 2/8 inches long. She then erased 2 and 4/8 inches. How long is the line now?
30/8 or 3 and 6/8
500
Use the table on the class website to help you solve this problem. How much more would it cost for Martha, her 4 friends, and her parents to buy the tickets at the park than online? Write the number model with an unknown and solve.
448- 343 = x ; It would be $105 more.