Subtract 9/63 from 18/80, Solve 18/80

Subtract 9/63 from 18/80

18/80 - 9/63 is 23/280.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040

Next, find the equivalent fraction of both fractional numbers with denominator 5040
For the 1st fraction, since 80 × 63 = 5040,
18/80 = 18 × 63/80 × 63 = 1134/5040
Likewise, for the 2nd fraction, since 63 × 80 = 5040,
9/63 = 9 × 80/63 × 80 = 720/5040
Subtract the two like fractions:
1134/5040 - 720/5040 = 1134 - 720/5040 = 414/5040
After reducing the fraction, the answer is 23/280

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