Jim worked 4/5 of an hour on a technology project. Then he worked 1/5 of an hour on a math assignment. How many hours did he work in all?
1 hour
200
1/2 + 1/8 + 1/4 =
7/8
200
5/6 - 3/4 =
1/12
200
11 1/2 + 10 3/5 =
22 1/10
200
9 1/2 - 6 3/4 =
2 3/4
200
Sheila and Katie rode their bikes from their houses to the library. Sheila rode 2 1/4 miles and Katie rode 2/6 mile farther than Sheila. How many miles did the girls ride in all? (2 pts.)
Katie rode 2 1/4 + 2/6 = 2 7/12 miles
The girls rode 4 5/6 miles in all.
300
1/3 + 5/6 + 4/9 =
1 11/18
300
2/9 - 1/8 =
7/72
300
2 3/4 + 7 3/5 =
10 7/20
300
15 1/6 - 4 3/8 =
10 19/24
300
Aaron cut a pie into 12 equal pieces. He gave three pieces to his grandfather and twice as much to his sister Becky. What fraction of the pie was left?
3/12 of the pie was left, which reduces to 1/4.
400
5/6 + 3/4 =
1 7/12
400
5/12 - 4/16 =
1/6
400
1 7/12 + 2 3/8 =
3 23/24
400
13 1/12 - 8 1/4 =
4 5/6
400
Rachel has three extension cords. The lengths of the cords are 14 2/4 in., 20 2/6 in., and 17 3/8 in. How long of an extension cord can Rachel make by plugging the cords end to end?
You add them all to get a total of 52 5/24 inches long.
500
7/12 + 9/16 =
1 7/48
500
5/8 - 7/12 =
1/24
500
8 3/4 + 7 3/4 =
16 1/2
500
10 5/12 - 4 7/8 =
5 13/24
500
Mary needs 8 3/4 yards of fabric. She already has 1 7/16 yards. How many yards of fabric does she still need? Explain all of the steps needed to solve this problem. (3 pts.)
Mary still needs 7 5/16 yards of fabric. I found my answer by subtracting the 1 7/16 yards Mary already had from the amount of fabric Mary needed in all.