Chp 3 and 4 test

# Chp 3 and 4 test - Chapters 3 -4 Cumulative Test Name: Dana...

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Chapters 3 -4 Cumulative Test Name: Dana Dutch 1. Subtract. So you have to find the GCF of both of the fractions. The GCF between 11 and 5 is 55. So now you times it by how much it goes by 8*5=40 and 11*5=55 . 5*11=55 and 1*11=11 now the problem looks like this 2. Find the least common multiple of 24 and 48. 24=12*2 48=24*2 so the lease common multiple is 2 3. Subtract. now you find the LCM and that is 9.

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4. Add. 5. Add. Write the answer in lowest terms. = 6. Which is larger, or ? 11/13 - 3/10 = 110/130 - 39/130 = 71/130 that is > 0 so 11/13 is larger 7. Estimate the following sum.
So this is how I did the problems so than you find the common of both and its 90 so then I took the second half of now you find the LCM and that is 56. so now the problem will look like ok now that I did that its time to put them together as a problem now you still have to find the LCM which is 2520. I times 90*28=2520 and 56*45=2520. so now the answer to the problem is now we have to bring it down to its lowest point and that is 8. Add.

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## This note was uploaded on 09/26/2010 for the course MATH 115 math 115 taught by Professor Webb during the Spring '10 term at University of Phoenix.

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Chp 3 and 4 test - Chapters 3 -4 Cumulative Test Name: Dana...

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