Gian's last fraction post

Monday, May 11, 2009
Multiplying and Dividing Fractions

Question 1

AsianTown.NET

Our first question is 2/3 multiplied by 9/10. First what we do is to multiply the numerators which is 2 and 9. So 2 x 9 equals to 18.

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Now all that is left to do is to multiply the denominators. So 3 multiplied by 10 equals to 30.
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Now the fraction we have is 18/30. So we simplify it and we get 3/5.

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So our answer is 3/5 .
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Question 2

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Now we move on to dividing fractions. Our first Question is 1/4 divided by 3/4. When dividing fractions it always helps when using a ratio table.

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Now we have to make it into a mixed fraction. First we have to figure out how many times does 4 go into 12 ? 3 , so 3 becomes the whole number. Since 4 goes into 12 perfectly and there are no left over 3 also becomes our numerator and the denominator stays the same.

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Adding and Subtracting Fractions


Question 1



First what we do is look at the Denominators. Then we look at what the two Denominators both go into, then we multiply. 2 multiplied by 7 would give us the total of 14.




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Now that we multiplied both our numerators. All that is left to do is add both second fractions that we got which was 7 over 14 and 4 over 14.




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So all we did for the last step was add the numerators and kept the denominators the same, which gave us the total fraction of 11 over 14.




Question 2


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First we look at the Denominators, then we figure out what they both go into so 3 times 10 equals 30. Now we make a set of fractions that could go into 30. Now we divide. We divide 3 into 30 and also divide how many times 10 goes into 30.




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The last thing we do now is to take away from the numerator which is 10 and 9. So 10 take away 9 equals to one. Then we keep the denominators the same and we have a fraction of 1 over 30.


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Word Problems


Question 1
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Question 2AsianTown.NET


Question 3AsianTown.NET




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