Subtract 6/40 from 63/7, Solve 9 0/7

Subtract 6/40 from 63/7

1^st number: 9 0/7, 2^nd number: 6/40

63/7 - 6/40 is 177/20.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 7 × 40 = 280,
63/7 = 63 × 40/7 × 40 = 2520/280
Likewise, for the 2nd fraction, since 40 × 7 = 280,
6/40 = 6 × 7/40 × 7 = 42/280
Subtract the two like fractions:
2520/280 - 42/280 = 2520 - 42/280 = 2478/280
After reducing the fraction, the answer is 177/20
In mixed form: 817/20

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