What is 78/10 + 1/8?
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This is how to add
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Step 1We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator. Now we multiply 78 by 8, and get 624, then we multiply 10 by 8 and get 80. Now for the second term. You multiply 1 by 10, and get 10, then multiply 10 by 8 and get 80. This gives us a new problem that looks like so:
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Step 2Since our denominators match, we can add the numerators. 624 + 10 = 634 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... Nope. Try the next prime number, 11... Nope. Try the next prime number, 13... Nope. Try the next prime number, 17... Nope. Try the next prime number, 19... Nope. Try the next prime number, 23... Nope. Try the next prime number, 29... Nope. Try the next prime number, 31... Nope. Try the next prime number, 37... Nope. Try the next prime number, 41... No good. 41 is larger than 40. So we're done reducing. Congratulations! Here's your final answer to 78/10 + 1/8
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