Adding with Fractions
1/3 + 2/3
1
1/3 + 2/3 = 3/3 = 1
5/7 - 3/7
2/7
2/3 * 1/5
2/15
3/5 square 3/8
3/5 > 3/8
A flower box is 2 1/2 feet long and 3/4 foot wide. What is the area of the flower box?
1 7/8 sq. ft.
2 1/2 = 5/2
5/2 * 3/4 = 15/8 = 1 7/8
2/5 + 1/2
9/10
Common denominator is 10
2/5 * 2/2 = 4/10 and 1/2 * 5/5 = 5/10
4/10 + 5/10 = 9/10
7/8 - 1/4
5/8
1/4 * 2/2 = 2/8
7/8 - 2/8 = 5/8
5/9 * 3/4
5/12
9-:3=3 and 3-:3=1
5/3 * 1/4 = 5/12
9/10 square 6/7
9/10 > 6/7
Ellie is making sugar cookies. The recipe says she needs 1 1/4 cups of sugar. She uses 3/4 cups of white sugar, and uses brown sugar for the rest. How much brown sugar does she use?
1/2 cup
1 1/4 = 5/4
5/4 - 3/4 = 2/4 = 1/2
4/7 + 2/3
1 5/21
4/7 * 3/3 = 12/21 and 2/3 * 7/7 = 14/21
12/21 + 14/21 = 26/21 = 1 5/21
6/7 - 2/5
16/35
6/7 * 5/5 = 30/35 and 2/5 * 7/7 = 14/35
30/35 - 14/35 = 16/35
5/24 * 8/15
1/9
5-:5=1 and 15-:5=3
24-:8=3 and 8-:8=1
1/3 * 1/3 = 1/9
5/12 square 4/6
5/12 < 4/6
4/6 * 2/2 = 8/12
5/12 < 8/12
Mr. James drives a recycling truck. On one trip, he picked up 2 4/5 tons of recyclables at a factory and 3 1/3 tons at a construction site. How much did the load in his truck weigh?
6 2/15 tons
2 4/5 + 3 1/3
4/5 = 12/15 and 1/3 = 5/15
2 12/15 + 3 5/15 = 5 17/15 = 6 2/15
1 3/8 + 2 1/3
3 17/24
Common denominator is 24
1 3/8 = 1 9/24 and 2 1/3 = 2 8/24
1 9/24 + 2 8/24 = 3 17/24
1 1/2 - 2/3
5/6
1 1/2 = 3/2
3/2 * 3/3 = 9/6 and 2/3 * 2/2 = 4/6
9/6 - 4/6 = 5/6
1 2/3 * 5
8 1/3
1 2/3 = 5/3
5 = 5/1
5/3 * 5/1 = 25/3 = 8 1/3
18/15 square 1 1/5
18/15 = 1 1/5
18/15 = 6/5 = 1 1/5
The route from Mia's house to her grandma's is 2 3/10 miles long. Mia rides her bike 1 1/4 miles and stops to call her dad. How much farther must she ride to get to her grandma's?
1 1/20 miles
2 3/10 = 2 6/20
1 1/4 = 1 5/20
2 6/20 - 1 5/20 = 1 1/20
5 1/4 + 2 5/6
8 1/12
Common denominator is 12
5 1/4 = 5 3/12 and 2 5/6 = 2 10/12
5 3/12 + 2 10/12 = 7 13/12 = 8 1/12
4 6/7 - 2 1/3
2 11/21
6/7 * 3/3 = 18/21 and 1/3 * 7/7 = 7/21
4 18/21 - 2 7/21 = 2 11/21
4 1/2 * 4/5
3 3/5
4 1/2 = 9/2
4-:2=2 and 2-:2=1
9/1 * 2/5 = 18/5 = 3 3/5
5/9 square 4/7
5/9 < 4/7
5/9 * 7/7 = 35/63 and 4/7 * 9/9 = 36/63
35/63 < 36/63
The gas tank on my car holds 10 2/5 gallons of gas. If I currently have 1/8 of a tank, how much gas do I have?
1 3/10 gallons
10 2/5 = 52/5
52/5 * 1/8 = 52/40 = 1 12/40 = 1 3/10