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You need to call your number "x", then write the following two equations:(Equation 1) x = 0.727272...

Multiplying by 100, you get:

(Equation 2) 100x = 72.727272...

If you subtract equation 1 from equation 2, and solve for "x", you will get the number as a fraction.

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It is 72/99, which can be simplified if you so wish.

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8y ago
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Q: How do write 0.72 repeating as a fraction?
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