Subtract 30/12 from 7/63
1st number: 7/63, 2nd number: 2 6/12
7/63 - 30/12 is -43/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
7/63 = 7 × 4/63 × 4 = 28/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
30/12 = 30 × 21/12 × 21 = 630/252 - Subtract the two like fractions:
28/252 - 630/252 = 28 - 630/252 = -602/252 - After reducing the fraction, the answer is -43/18
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