What is 3/20 + 4/10?
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This is how you add
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Step 1Our denominators (bottom numbers) don't match, so we can't add yet. 20 goes into 10 evenly, so we only need to multiply one term to get a common denominator. Multiply 4 by 2, and get 8, then we multiply 10 by 2 and get 20. This gives us a new problem that looks like so:
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Step 2Since our denominators match, we can add the numerators. 3 + 8 = 11 So what's the answer so far?
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Step 3Can this fraction be reduced? First, we attempt to divide it by 2... Nope. Try the next prime number, 3... Nope. Try the next prime number, 5... Nope. Try the next prime number, 7... Nope. Try the next prime number, 11... Nope. Try the next prime number, 13... No good. 13 is larger than 11. So we're done reducing. Congratulations! Here's your final answer to 3/20 + 4/10
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