Subtract 72/12 from 1/20
1st number: 1/20, 2nd number: 6 0/12
1/20 - 72/12 is -119/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
1/20 = 1 × 3/20 × 3 = 3/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
72/12 = 72 × 5/12 × 5 = 360/60 - Subtract the two like fractions:
3/60 - 360/60 = 3 - 360/60 = -357/60 - After reducing the fraction, the answer is -119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-72/12 1/40-72/12 1/20-72/24 3/20-72/12 1/60-72/12 1/20-72/36 5/20-72/12 1/20-72/60 7/20-72/12 1/20-72/84