What is 8/10 + 2/5?
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Here's how we add
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Step 1Our denominators (bottom numbers) don't match, so we can't add yet. 10 goes into 5 evenly, so we only need to multiply one term to get a common denominator. Multiply 2 by 2, and get 4, then we multiply 5 by 2 and get 10. This gives us a new problem that looks like so:
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Step 2Since our denominators match, we can add the numerators. 8 + 4 = 12 That gives us an answer of
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Step 3Can this fraction be reduced? First, we attempt to divide it by 2... Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:
Now, try the same number again. Nope. Try the next prime number, 3... Nope. Try the next prime number, 5... Nope. Try the next prime number, 7... No good. 7 is larger than 6. So we're done reducing. Congratulations! Here's your final answer to 8/10 + 2/5
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