reduce 63/80

I need to reduce 63/80
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63/80 doesn't reduce any further as a fraction because 63 and 80 have no common factors: 63=3*3*7 and 80=2*2*2*2*5. We could write 7*3^2/5*2^4 to demonstrate this fact, or we could reduce the fraction to a decimal=0.7875.

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