ADD & SUBTRACT FRACTIONS W/UNLIKE DENOMINATORS
Add & Subtract Fractions w/Unlike Denominators
1/4 + 3/8
5/8
Subtract Mixed Numbers w/ Renaming
3 2/3 - 1 11/12
1 3/4
Add & Subtract Mixed Numbers
1 4/5 + 2 1/10
3 9/10
Leann’s home is 5 1/4 miles from school. Susan’s home is 7 4/9 miles from school. How much farther is Susan's home than Leann's home."
2 7/36 miles farther
2 1/2 + (3 1/4 + 5/6)
6 7/12
Add & Subtract Fractions w/Unlike Denominators
5/12 + 1/3
3/4
Subtract Mixed Numbers w/ Renaming
4 1/4 - 2 1/3
1 11/12
Add & Subtract Mixed Numbers
4 5/6 - 2 3/4
2 1/12
To make some punch, Martin mixed together 2 1/2 liters of apple juice and 2 1/4 liters of soda. How many liters of punch did Martin make?
4 3/4 liters of punch
(3 1/6 + 1 3/4) - 2 1/2
2 5/12
Add & Subtract Fractions w/Unlike Denominators
2/5 + 3/7
29/35
Subtract Mixed Numbers w/ Renaming
5 2/5 - 1 1/2
3 9/10
Add & Subtract Mixed Numbers
7 2/3 - 3 1/6
4 1/2
Alex made a fruit salad with 1 3/5 pounds of blueberries and 2 3/10 pounds of watermelon. How many pounds of fruit did Alex use in all?
3 9/10 lbs of fruit
1 2/3 + (2 3/4 + 3 1/2)
7 11/12
Add & Subtract Fractions w/Unlike Denominators
3/4 - 1/8
5/8
Subtract Mixed Numbers w/ Renaming
13 1/6 - 3 4/5
9 11/30
Add & Subtract Mixed Numbers
3 2/3 - 1 1/6
2 1/2
Jim drank 2 4/5 cups of orange juice and Jack drank 1 1/10 cups less than Jim. How much juice did Jim and Jack drink TOGETHER?
4 1/2 cups
(2 1/3 + 2 1/2) - 3 3/4
1 1/12
Add & Subtract Fractions w/Unlike Denominators
1/4 - 1/7
3/28
Subtract Mixed Numbers w/ Renaming
7 3/8 - 2 7/9
4 43/72
Add & Subtract Mixed Numbers
3 5/8 + 5/12
4 1/24
Marilyn is planting a vegetable garden this spring. Her garden is a rectangle measuring 4 1/2 ft long and 1 3/4 ft wide. How many feet of fencing does Marilyn need to fence in her garden?
Perimeter = Add 4 sides
4 1/2 + 4 1/2 = 9 ft.
1 3/4 + 1 3/4 = 3 1/2 ft.
so 9 ft. + 3 1/2 ft. = 12 1/2 ft of fence
Without solving, if you estimate the sum of 2 5/6 + (3 1/9 + 1 2/3), is the estimated sum more than 8? About 8? Or less than 8?
About 8:
2 5/6 = about 3
+ 3 1/9 = about 3
+ 1 2/3 = about 2