Last Fraction Blog Post

Tuesday, May 12, 2009
Adding fractions is easy once you get the hang of it you can get subtraction as well.
First you have to make all your fractions improper to start here is the first example.
So first you make the fractions improper but since these are proper fractions we have no need to. Next you have to find the common denominator ( which means the number both denominators go into.) Which in this case is 10. So you change both numerators to 10. Next you think what multiplied by 5 gives you 10 the answer is 2 so you multiply the numerator (2) by 2 which gives you your first fraction which is 4 over 10. Now do the same with the other fraction. What multiplied by 10 equals 10 hmm I'm pretty sure its 1 multiplied by 10 = 10 so you times the top number (3) by 1 which is 3 so the fraction is 3 over 10.

Now that you have your fractions you just add the numerators together.

So you answer is seven tenths! we always have to simplify but we do
n't have to now.

Hes exited for the next question are you!? Next addition question!

First we find the common denominator which in this case is 9 because 3 and 9 go into 9. so now we change both denominators to 9. We can keep the first fraction the same because it is being multiplied by 1 which m
akes that fraction 5 over 9 . but the other you need to think what time 3 is 9? 3 times 3 is 9 so you times the top number(1) by 3 which equals 3 so that fraction would be 3 over 9. Add the numerators together and you get your answer.
You do the same steps that you do in adding than you do in subtracting except instead of adding at the end you subtract. This example is a mixed fraction.

Im sorry im not done :(



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