Find the LCD for each set of fractions.
- ^23 , ^34 2. 152 , ^56 3. ^78 , ^16 4. ^12 , ^14 , ^18 5.^13 , ^59 , ^12
Estimate and then add. Write each answer in simplest form.
- ^12 7. ^14 8. ^18 9. 112 10. .^45 11. 185
^13 ^25 ^56 .^13 210 .^13
- ^79 13. ^57 14. 130 15. .^29 16. .^38 17. ^49
^12 ^38 .^16 172 254 ^15
1
4
19. ^1
2
1
0
20. ^1
6
21. ^3
4
22.
2
3
0
23. .^5
6
1
3 .
2
5
1
9
1
6 .
1
5 .
5
8
1
2 .
1
2
1
9
1
2 1
3
0 2
7
4
Compare. Use ,, , or ..
- 51 130 ? ^12 25. 74 ^12 ? ^11 ^34 26. 61 ^49 ?^23 27. 97 110 ? 1
29. Three fifths of the 2nd floor is used for
hallways and 2
3
0 for offices. What
part of the floor is used for both?
31. Mia has 1 cup of milk that she
wants to use. She uses
1
4
c,
^1
3
c, and ^3
8
c in three recipes.
Did Mia use the entire cup? - In water, sound travels about 190 mi
in a second. How far will it travel
in 2 seconds? - On Friday Hector skied
1
7
6
mi and
then ^5
8
mi. On Saturday he skied
^2
5
mi and then
1
3
0
mi. On which day
did Hector ski farther?
Write as a mixed number in simplest form.
1
4
(^8)
33.
1
5
(^1)
2
6
(^9)
35.
7
8
(^6)
36.
5
9
(^7)
8
2
5
0
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