Ok, here are some tips to help. But it will require your daughter to know her multiplication facts. Here we go:
1) She needs to find a number to multiply the denominators by so they (they being the denominators) come out to be the same number.
2) See if anything times one denominator will equal the other denominator. For example 1/2 plus 1/3. Nothing times 2 will equal 3 and nothing times 3 will equal 2. But lets try 1/4 and 1/8. Nothing times 8 will equal 4 but 2 times 4 will equal 8.
3) There's another trick we call, double it, triple it, then multiply them together. Double the smallest denominator. Does it equal the second denominator? Yes, then stop. No, then triple it. Does that equal the second denominator? Yes, then stop. No, then multiply both denominators.
Overall, the trick is to get the denominators to both become the same number. Once you do that, its not over. Whatever you multiply the denominator by, YOU MUST MULTIPLY THE NUMERATOR BY THAT SAME NUMBER. You must do this for both fractions.
Ok, let me give you a quick example. 1/2 plus 1/3. Double 2, doesn't work, triple 2 and you get 6. Something times 3 will give me 6. so here's what I'm going to do. multiply 2 times 3 and get 6 and do the same to the numerator. 1 times 3 to get 3. My new fraction is 3/6. Now do the second denominator. 3 times 2 will give me 6 and 1 times 2 will give me 2. My new fraction is 2/6.
Now that both denominators are the same and you fixed the numerators, you can add away.
I know its tedious but this the best I can give you without doing it in person.
2006-08-23 15:05:58
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answer #1
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answered by Melissa F 5
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Try to use real life situations to help her out. For example, cook (or order) a pizza. Each slice is one part of a fraction. Use the pizza as a visual to help her add and subtract the number of slices (the fractions).
2006-08-23 22:01:49
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answer #2
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answered by Mariposa 7
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i am in 7Th grade and i was doing fractions in 3rd grade because i am in advanced math. the best thing for someone who is struggling in fractions is to take her into her math teacher and have her be honest to her teacher and tell the teacher what is wrong. sometimes it is better for her to be tutored by a student. if she does not feel comfortable either way the best thing to do is get an extra copy of the teacher's math book and tutor her yourself because she will be more open with a parent than anyone in most cases.
2006-08-23 22:04:04
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answer #3
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answered by ravon w 1
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