Subtract 15/80 from 63/7, Solve 9 0/7

Subtract 15/80 from 63/7

1^st number: 9 0/7, 2^nd number: 15/80

63/7 - 15/80 is 141/16.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 7 × 80 = 560,
63/7 = 63 × 80/7 × 80 = 5040/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560
Subtract the two like fractions:
5040/560 - 105/560 = 5040 - 105/560 = 4935/560
After reducing the fraction, the answer is 141/16
In mixed form: 813/16

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