Add Fractions
1/3 + 1/4
7/12
2 1/3 - 1 3/4
7/12
Find the missing number and the rule
2, 4, ___, 8, 10
6
Rule: add 2
(5 + 4) + 3 = 5 + (4 + 3)
Associative Property of Addition
Jill bought 2 13 boxes of carrot muffins for a bake sale. Mike bought 1 3/4 boxes of apple muffins. What is the total number of boxes of muffins Jill and Mike brought to the bake sale?
Jill and Mike brought 4 1/12 boxes of muffins to the bake sale.
2 1/3 + 1 3/4
6 1/5 - 2 1/3
3 13/15
0, 1/2, 1, ____, 2, 2 1/2
1 1/2
rule: add 1/2
7 + ( 3 + 2) = 7 + (2 + 3)
Commutative Property of Addition
Tim has 3 13/16 pounds of crab left.
6 1/4 + 4 2/3
1 7/12
1 3/4 - 7/8
7/8
1/6, 1/2, 5,6, _______, 1 1/2
1 1/6
add 1/3
1/2 + 1/3 + 1/5 = (1/3 + 1/2) + 1/5
Commutative Property of Addition
Makayla walks for exercise. She wants to walk a total of 6 miles. On Monday, she walked 2-5/6 miles. On Tuesday, she walked 1-1/3 miles. How many more miles does Makayla need to walk to reach her goal?
1 - 5/6
Makayla need to walk 1-5/6 more miles to reach her goal.
2 3/4 + 1 5/8
1 1/8
5 2/3 - 2 5/8
3 1/24
4, 3 3/4, ______, 3 1/4, 3
3 1/2
rule: subtract 1/4
(7/10 + 1/3) + 1/10 = (1/3 + 7/10) + 1/10
Jaxsen picked apples for his family. He picked a total of 6- 1/2 pounds. He took 2-3/4 pounds to his aunt and 1-5/8 pounds to his mother. How many pounds of apples were left to give his grandmother?
3 3/5 + 4 7/10
4 2/5 - 2 5/6
1 17/30
1 3/4, 1 9/16, _____, 1 3/16 , 1
1 6/16 or 1 3/8
subtract 3/16
( 6 2/5 + 4/9) + 3 2/9) = 6 2/5 + ( 4/9 + 3 2/9)
Associative Property of Addition
Mrs. Luster practiced playing the guitar 15 1/3 hours over the past 3 weeks. She practiced for 6 1/4 hour during the first week and 4 2/3 hours during the second week. How much time did Mrs. Luster spend practicing during the third week?
Mrs. Luster practiced 40 5/12 hours during the 3rd week.