Math Week 2
DRILL PROBLEMS
Identify the following types of fractions: 2-1. LU 2-1(1) 2-2. LU 2-1(2) 2-5. 12 2-3. 25 —9 10 Convert the following to mixed numbers: 91 2-4. 11 921 13 10 15
Convert the following to improper fractions: LU 2-1(2) 2-6. 8-7 2-7. 19 8 3
Reduce the following to the lowest terms. Show how to calculate the greatest common divisor by the step approach. LU 2-1(3) 44 2-8. . — 2-9. 38 52
Convert the following to higher terms. LU 2-1(3) 2-10. 9= — 10 70
Determine the LCD of the following (a) by inspection and (b) by division of prime numbers: LU 2-2(2) 2-11.
_3 4′ _5 6′ _1 5 Check _7 12′
Inspection
2-12. 5 75 2 6′ 18’9′ 72 Inspection
2-13. 1 3 5 1 4’32’48’1 Inspection
Check
Check
Add the following and reduce to lowest terms: LU 2-2(1), LU 2-1(3) 2-14. 3 + –3 2-15. 3+ 4 9 9 7 21 2-16. 6 I + a 2-17. 63+9 1 24 8 8 8 2-18. 9 9 + 6 1 10 10
Subtract the following and reduce to lowest terms: LU 2-2(3), LU 2-1(3)
2-19. 11 2-20. 14-3 – 105 — – 12 12 8 8 2-21. 121 –4? 9 3
Multiply the following and reduce to lowest terms. Do not use the cancellation technique for these problems. LU 2-3(1), LU 2-1(3)
2-22. 2-24. 17 x –4 2 87 x 64 8 2-23. –5 x –3 6 8
Multiply the following. Use the cancellation technique. LU 2-3(1), LU 2-1(2)
2-25. -4x —30 x —6 10 60 10
2-26. 3-3x –8x 4-9 4 9 12
Divide the following and reduce to lowest terms. Use the cancellation technique as needed. LU 2-3(2), LU 2-1(2)
2-27. 12 ÷ 4 2-28. 18= –1 9 5
2-29. 4?_ 12 2-30. 35_31 3 6 2
