SOLUTION: i need help with adding,subtracting,and multiplying fractions

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Question 48556: i need help with adding,subtracting,and multiplying fractions
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
Adding Fractions
Remember: the denominators must be the same
Ex.) 1%2F2+%2B+1+=+1%2F2+%2B+2%2F2+=+%281+%2B+2%29%2F2+=+3%2F2
Ex.) 3%2F4+%2B+5%2F6+=+9%2F12+%2B+10%2F12+=+%289+%2B+10%29%2F12+=+19%2F12
Subtracting Fractions
Remember: the denominators must be the same
Ex.) 1+-+1%2F2+=+2%2F2+-+1%2F2+=+%282+-+1%29%2F2+=+1%2F2
Ex.) 6%2F7+-+7%2F21+=+18%2F21+-+7%2F21+=+%2818+-+7%29%2F21+=+11%2F21
Multiplying Fractions
Remember: multiply the numerator by the numerator and multiply the denominator by the denominator
Ex.) %283%2F2%29%281%2F4%29+=+%283%2A1%29%2F%282%2A4%29+=+3%2F8
Ex.) %282%2F11%29%2810%2F2%29+=+%2810%2A2%29%2F%282%2A11%29+=+10%2F11