Fraction Addition
5/7
7/8 - 3/8 =
4/8 or 1/2
At an aquarium, the penguin nursery is open twice a day. Once for 2/3 of an hour, and second time for 5/12 of an hour. How much time is the nursery open altogether?
13/12 or 1 1/12
1/2 of 24
12
1 2/5
3/8 + 5/16 =
11/16
3/4 - 1/8 =
5/8
The sharks at the aquarium are fed 3 times a day. They are fed 2/15 of a ton in the morning, and 3/15 of a ton in the afternoon. If they are fed 9/15 of a ton in total, how much are they fed in the evening?
4/15
1/3 of 21
7
Rename 1 9/6 as a mixed number with the same denominator
2 3/6 or 2/ 1/2
2/3 + 1/2 =
7/6 or 1 1/6
5/8
39/7 or 5 4/7 pounds
1/5 of 45
9
Rename 3 2/5 as a mixed number with the same denominator
1 12/5, 2 7/5
5/7 + 2/5 =
39/35 or 1 4/35
4/7 - 3/8 =
11/56
An octopus weighed 5/6 pounds. After two weeks, its weight was increased by 3/10 pounds. But afterwards, it lost 1/5 pounds in weight as it was sick. What is its current weight?
58/60 or 29/30
1/7 of 42
6
Rename 7 3/8 as a mixed number with the same denominator
1 51/8, 2 43/8, 3 35/8, 4 27/8, 5 19/8, 6 11/8
Write an equation with 2 fractions that equals 1 3/5
Write an equation with 2 fractions that equal 3/4
1 1/4 - 1/2 =
An otter in the aquarium was born early. At birth it weighed 3 4/15 oz. This is 1 1/3 oz less than the average weight of a newborn otter. What is the average weight of a newborn otter?
4 3/5 oz
2/3 of 81
54
Rename 4 5/7 as a mixed number with the same denominator in 2 ways
1 26/7, 2 19/7, 3 12/7