Estimation
1/7 + 3/8 ≈
0 + 1/2 = 1/2
1/12 + 1/6 =
1/12 + 2/12 = 3/12 OR 1/4
1 1/2 + 3 1/4 =
1 2/4 + 3 1/4 = 4 3/4
Jan found two worms in the yard and measured them with a ruler. One worm was 5/8 of an inch long. The other worm was 1/2 of an inch long. How much longer was the longer worm?
1/8 inch
5/9 - 1/10 ≈
1/2 - 0 = 1/2
2/3 - 1/6 =
4/6 - 1/6 = 3/6 OR 1/2
8 7/12 - 4 1/2 =
8 7/12 - 4 6/12 = 4 1/12
Trisha made an apple pie. She used 3/4 of a tablespoon of cinnamon and 1/2 of a tablespoon of nutmeg. How much more cinnamon than nutmeg did Trisha use?
1/4 tablespoon
11 2/3 + 79 1/3 ≈
12 + 79 = 91
3/7 + 2/3 =
9/21 + 14/21 = 23/21 OR 1 2/21
10 2/3 + 5 1/6 =
10 4/6 + 5 1/6 = 15 5/6
Of the flags in Sue's Flag Shop, 1/4 are teal and another 1/12 are indigo. What fraction of the flags are either teal or indigo?
4/12 or 1/3 flags
10 5/6 - 3 1/6 ≈
11 - 3 = 8
7/10 - 1/6 =
21/30 - 5/30 = 16/30
8 2/5 - 1/2 =
7 14/10 - 5/10 = 7 9/10
On a hot day, Braden poured 3/4 of a bucket of water into a plastic wading pool. A few minutes later he added another 5/6 of a bucket. How much water did Braden pour into the pool?
19/12 or 1 7/12 buckets
3,903 59/70 + 42 3/5 ≈
3,904 + 43 = 3,947
1/2 - 1/11 =
11/22 - 2/22 = 9/22
2 1/11 - 2/5 =
1 60/55 - 22/55 = 1 38/55
A school garden has two rectangular sections.
The first section is 3 5/6 meters long.
The second section is 2 7/12 meters long.
A narrow walking path runs between the two sections and takes up 2 7/12 meters of the total length.
What is the combined length of the two garden sections after the walking path is subtracted?
Answer in simplest form.
4 2/3 meters