week 3 check point - Dana Dutch Math 115 Week 3 Checkpoint-...

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Dana Dutch Math 115 Week 3 Checkpoint- Adding and Subtraction Fraction Section 3.1 22. or 40. 42. You collect 7 nickels, 4 nickels, and then 5 nickels. How much money do you have as a fraction of a dollar? Each dollar is equivalent to 20 nickels (ie. $1 = 20 nickels) So (7+4+5) / 20 nickels * $1 = 16/20 = 4/5 of a dollar 54. Section 3.2 47. Complete the following crossword puzzle. ACROSS 2. The LCM of 11 and 13 - 143 4. The GCF of 120 and 300- 60 7. The GCF of 13 and 52- 13 8. The GCF of 360 and 540- 180 DOWN 1. The LCM of 8, 14, and 21- 168 3. The LCM of 16 and 12- 48
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5. The LCM of 2, 5, and 13- 130 6. The GCF of 54 and 90- 18 Section 3.3 46. To find the answer you have to find the GCF of the two fractions. The GCF is 48. So it looks more like this 24*2=48, 13*2=26,16*3=48, 5*3=15; then I have to get the least common factor for the next pair which is we know that 11/48 is in their lowest term so now I had to find what 8 goes into 48 and that is 6. So I did 8*6=48 and 3*6=18 so now its 11/48+18/48=29/48 so the answer is 48. so the answer is to get the answer you find the GCF which is 10 so 9/10 stays the same and 5*2=10 and 2*1=2 so now the problem looks like 9/10-2/10=7/10 now you do to the addition
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week 3 check point - Dana Dutch Math 115 Week 3 Checkpoint-...

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