Page 77 - Math Course 1 (Book 1)
P. 77
Like Fractions
Find each sum or difference. Write in simplest form.
7. a + 4a 8. 1 1 - 2 1
6 6 2y 2y
9. 7c + 7c 10. 7x - 7x
16 16 9 9
3m 8m
12. +
11. 10 - 13 5 5
15 15
5 3 1
Evaluate each expression if x = , y = 1 , and z =
8 8 8
13. x + y
14. x + y + z
15. y - x
69
