Subtract 20/63 from 45/12
1st number: 3 9/12, 2nd number: 20/63
45/12 - 20/63 is 865/252.
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,
45/12 = 45 × 21/12 × 21 = 945/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Subtract the two like fractions:
945/252 - 80/252 = 945 - 80/252 = 865/252 - In mixed form: 3109/252
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