= Step-by-Step Solutions begin on page R1.
Extra Practice begins on page EP2.
Examples 1–4 Add or subtract. Write in simplest form.- 2 91 + 7 94 11. 3 ^27 + 4 ^37 12. 10 54 - 2 ^15 13. 8 76 - 6 ^57
- 9 54 - 2 103 1515 11 43 - 4 ^13 16. 8 125 + 11 41 17. 8 83 + 10 ^13
- 9 51 - 2 53 19. 6 ^14 - 2 ^34 20. 6 53 - 1 ^23 21. 4 103 - 1 ^34
- 14 ^16 - 7 ^13 23. 12 ^12 - 6 85 24. 8 - 3 ^23 25. 13 - 5 65
Choose an operation to solve each problem. Explain your reasoning. Then
solve the problem. Write your answer in simplest form.Example 5- HIKING If Sara and Maggie hiked both of the Trail Length (mi)
Woodland Park^3 _^23
Mill Creek Way^2 _^56trails listed in the table, how far did they
hike altogether?- JEWELRY Margarite made
the jewelry shown. If the
necklace is 10 _^58 inches
longer than the bracelet,
how long is the necklace
that Margarite made? - GARDENS The length of Kasey’s garden is 4 ^58 feet. Find the width of
Kasey’s garden if it is 2 ^78 feet shorter than the length. - HAIRSTYLES Before Alameda got her haircut, the length of her hair
was 9 ^3
4
inches. After her haircut, the length was 6 ^1
2
inches. How many
inches did she have cut?
Add or subtract. Write in simplest form.B 30. 10 - 3 _^5
11- 24 - 8 ^3
4
32. 6 ^1
6- 1 _^2
3- 5 ^5
9
33. 3 ^1
4- 2 _^5
6- 4 _^1
3
- 4 _^1
- 2 _^5
- 5 ^5
- 1 _^2
- TIME Karen wakes up at 6:00 a.m. It takes her 1 ^1
4
hours to shower, get
dressed, and comb her hair. It takes her ^1
2
hour to eat breakfast, brush her
teeth, and make her bed. At what time will she be ready for school?
MEASUREMENT Find the perimeter of each figure. Write in simplest form.
3535
2yd^38 2yd^382yd^3836.31 in.^423 in.
6456 in.513 in.^necklacebracelet7 in.^14Lesson 2D Add and Subtract Fractions 155139_156_C3L2_895130.indd 155 12/31/09 12:38 PM