Subtract 70/18 from 1/63, Solve 1/63

Subtract 70/18 from 1/63

1^st number: 1/63, 2^nd number: 3 16/18

1/63 - 70/18 is -244/63.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 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 18 × 7 = 126,
70/18 = 70 × 7/18 × 7 = 490/126
Subtract the two like fractions:
2/126 - 490/126 = 2 - 490/126 = -488/126
After reducing the fraction, the answer is -244/63

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