Add and Subtract Mixed Numbers
2 3/4 + 3 3/10
6 1/20
8 − 6 1/9
1 8/9
1 9/10, 1 7/10, ____, 1 3/10, 1 1/10
Subtract 1/5 or 2/10
Lynne bought a bag of grapefruit, 1 5/8 pounds of apples, and 2 3/16 pounds of bananas. The total weight of her purchases was 7 1/2 pounds. How much did the bag of grapefruit weigh?
3 11/16 pounds
(2/7 + 1/3) + 2/3
1 2/7
5 17/18 − 2 2/3
3 5/18
9 1/4 − 3 2/3
5 7/12
2 5/12, 2 1/6, 1 11/12, ____, 1 5/12
Mattie’s house consists of two stories and an attic. The first floor is 8 5/6 feet tall, the second floor is 8 1/2 feet tall, and the entire house is 24 1/3 feet tall. How tall is the attic?
7 feet
(2 5/12 + 4 1/4) + 1/4
6 11/12
5 3/7 − 2 1/5
3 8/35
Carlene bought 8 1/16 yards of ribbon to decorate a shirt. She only used 5 1/2 yards. How much ribbon does she have left over?
2 9/16 yards
Find the first three terms:
Rule: start at 1/2 , add 1/3
1/2, 5/6, 1 1/6, 1 1/2
Della bought a tree seedling that was 2 1/ 4 feet tall. During the first year, it grew 1 1/6 feet. After two years, it was 5 feet tall. How much did the seedling grow during the second year?
1 7/12 feet
Elizabeth rode her bike 6 1/2 miles from her house to the library and then another 2 2/5 miles to her friend Milo’s house. If Carson’s house is 2 1/2 miles beyond Milo’s house, how far would she travel from her house to Carson’s house?
11 2/5 miles
Jacobi bought 7 1/2 pounds of meatballs. He decided to cook 1 1/4 pounds and freeze the rest. How many pounds did he freeze?
6 1/4 pounds
During his first vet visit, Pedro’s puppy weighed 6 1/8 pounds. On his second visit, he weighed 9 1/16 pounds. How much weight did he gain between visits?
2 15/16 pounds
Jarett’s puppy weighed 3 3/4 ounces at birth. At one week old, the puppy weighed 5 1/8 ounces. At two weeks old, the puppy weighed 6 1/2 ounces. If the weight gain continues in this pattern, how much will the puppy weigh at three weeks old?
7 7/8 ounces
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 of clay
Hassan made a vegetable salad with 2 3/8 pounds of tomatoes, 1 1/4 pounds of asparagus, and 2 7/8 pounds of potatoes. How many pounds of vegetables did he use altogether?
6 1/2 pounds
Jill walked 8 1/8 miles to a park and then 7 2/5 miles home. How many miles did she walk?
15 21/40 miles
Natalia picked 7 1/6 bushels of apples today and 4 5/8 bushels yesterday. How many more bushels did she pick today
2 13/24 bushels
A baker started out with 12 cups of flour. She had 9 1/4 cups of flour left after the first batch of batter she made. She had 6 1/2 cups of flour left after the second batch of batter she made. If she makes two more batches of batter, how many cups of flour will be left?
1 cup of flour
Thelma spent 1/6 of her weekly allowance on dog toys, 1/4 on a dog collar, and 1/3 on dog food. What fraction of her weekly allowance is left?
1/4
Letitia has 7 1/6 yards of yellow ribbon, 5 1/4 yards of orange ribbon, and 5 1/6 yards of brown ribbon. How much ribbon does she have altogether?
17 7/12 yards