Subtract 18/63 from 42/12
1st number: 3 6/12, 2nd number: 18/63
42/12 - 18/63 is 45/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
42/12 = 42 × 21/12 × 21 = 882/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
18/63 = 18 × 4/63 × 4 = 72/252 - Subtract the two like fractions:
882/252 - 72/252 = 882 - 72/252 = 810/252 - After reducing the fraction, the answer is 45/14
- In mixed form: 33/14
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