Subtract 63/20 from 3/12
1st number: 3/12, 2nd number: 3 3/20
3/12 - 63/20 is -29/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
63/20 = 63 × 3/20 × 3 = 189/60 - Subtract the two like fractions:
15/60 - 189/60 = 15 - 189/60 = -174/60 - After reducing the fraction, the answer is -29/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-63/20 3/24-63/20 3/12-63/40 9/12-63/20 3/36-63/20 3/12-63/60 15/12-63/20 3/60-63/20 21/12-63/20 3/84-63/20