Subtract 9/14 from 72/80, Solve 72/80

Subtract 9/14 from 72/80

72/80 - 9/14 is 9/35.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 14 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 80 × 7 = 560,
72/80 = 72 × 7/80 × 7 = 504/560
Likewise, for the 2nd fraction, since 14 × 40 = 560,
9/14 = 9 × 40/14 × 40 = 360/560
Subtract the two like fractions:
504/560 - 360/560 = 504 - 360/560 = 144/560
After reducing the fraction, the answer is 9/35

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