Subtract 20/14 from 1/63, Solve 1/63

Subtract 20/14 from 1/63

1^st number: 1/63, 2^nd number: 1 6/14

1/63 - 20/14 is -89/63.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 14 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 63 × 2 = 126,
1/63 = 1 × 2/63 × 2 = 2/126
Likewise, for the 2nd fraction, since 14 × 9 = 126,
20/14 = 20 × 9/14 × 9 = 180/126
Subtract the two like fractions:
2/126 - 180/126 = 2 - 180/126 = -178/126
After reducing the fraction, the answer is -89/63

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