Subtract 45/63 from 1/12
1/12 - 45/63 is -53/84.
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,
1/12 = 1 × 21/12 × 21 = 21/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
45/63 = 45 × 4/63 × 4 = 180/252 - Subtract the two like fractions:
21/252 - 180/252 = 21 - 180/252 = -159/252 - After reducing the fraction, the answer is -53/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12-45/63 1/12-90/63 1/24-45/63 3/12-45/63 1/36-45/63 5/12-45/63 1/60-45/63 7/12-45/63 1/84-45/63