Subtract 80/10 from 6/63, Solve 6/63

Subtract 80/10 from 6/63

1^st number: 6/63, 2^nd number: 8 0/10

6/63 - 80/10 is -166/21.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 10 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
6/63 = 6 × 10/63 × 10 = 60/630
Likewise, for the 2nd fraction, since 10 × 63 = 630,
80/10 = 80 × 63/10 × 63 = 5040/630
Subtract the two like fractions:
60/630 - 5040/630 = 60 - 5040/630 = -4980/630
After reducing the fraction, the answer is -166/21

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