Subtract 63/14 from 9/80, Solve 9/80

Subtract 63/14 from 9/80

1^st number: 9/80, 2^nd number: 4 7/14

9/80 - 63/14 is -351/80.

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,
9/80 = 9 × 7/80 × 7 = 63/560
Likewise, for the 2nd fraction, since 14 × 40 = 560,
63/14 = 63 × 40/14 × 40 = 2520/560
Subtract the two like fractions:
63/560 - 2520/560 = 63 - 2520/560 = -2457/560
After reducing the fraction, the answer is -351/80

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