Addition with Unlike Denominators
1/4 + 5/8
7/8
5/8 - 1/2
1/8
2 1/2 -1 5/6
2/3
Write the rule for the sequence and then find the unknown term:
1/4, 1/2, 3/4, ___
Rule: Add 1/4
4/4= 1
Ken bought 3 3/4 pounds of apples at the farmers' market. Abby bought 2 1/8 pounds of apples. How many pounds of apples did Ken and Abby buy?
5 7/8 pounds of apples
1/4 + 1/12
1/3
5 6/7 - 1 2/3
4 4/21
9 1/6 - 3 5/8
5 13/24
Write the rule for the sequence and then find the unknown term:
10 2/3, 9 11/18, 8 5/9, ____
Rule: Subtract 1 1/18
7 9/18
Caitlin has 4 3/4 pounds of clay. She uses 1 1/10 pounds to make a cup, and another 2 pounds to make a jar. How many pounds are left?
1 13/20 pounds left
1/9+5/6
17/18
13/14-1/4
19/28
11 1/9 - 3 2/3
7 4/9
Write the rule for the sequence and then find the unknown term:
14 3/10, 13 4/5, 13 3/10, ___, 12 3/10
Rule: Subtract 5/10
12 4/5
Martin is making a model of a Native American canoe. He has 5 1/2 feet of wood. He uses 2 3/4 feet for the hull and 1 1/4 feet for a paddle. How much wood does he have left?
1 1/2
(2 5/12 + 4 3/4)+ 3/4
7 11/12
Wesley bought 1/2 pound of nails for a project. When he finished the project, he had 1/4 pound of nails left. How many pounds of nails did he use?
1/4 pound
7 3/8 - 2 7/9
4 43/72
Vicki started jogging. The first week she ran, she ran 3/16 miles. In the second week, she ran 3/8 mile, and in the third week, she ran 9/16 mile. If she continued this pattern when was the first time she ran more than one mile?
6 weeks
A pet store donated 50 pounds of food for Dogs, Cats, and bunnies to an animal shelter. 19 3/4 pounds was for Dogs and 18 7/8 pounds were for Bunnies. How many pounds of Cat food did the pet store donate?
11 3/8
2 8/12 + 2 8/11
5 13/33
Amber had 3/8 of a cake left after her party. She wrapped a piece that was 1/4 of the original cake for her best friend. What fractional part did she have left for herself?
1/8
Three commercials are played in a row between songs on the radio. The three commercials fill exactly 3 minutes of time. If the first song on the commercial uses 1 1/6 minutes, and the second uses 3/5 minute, how long is the third commercial?
1 7/30 minutes
Mr. Connors drove 78 1/3 miles on Monday, 77 1/2 miles on Tuesday, and 75 5/6 miles on Wednesday. If he continues this pattern on Thursday and Friday, how many fewer miles will he drive on Friday than on Tuesday?
3 3/4
This week, Maddie worked 2 1/2 hours on Monday, 2 2/3 hours on Tuesday, and 3 1/4 hours on Wednesday. How many more hours will Maddie need to work this week to make her goal of 10 1/2 hours?
2 1/12 hours