Subtract 1/6 from 72/15
1st number: 4 12/15, 2nd number: 1/6
72/15 - 1/6 is 139/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
72/15 = 72 × 2/15 × 2 = 144/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
1/6 = 1 × 5/6 × 5 = 5/30 - Subtract the two like fractions:
144/30 - 5/30 = 144 - 5/30 = 139/30 - In mixed form: 419/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15-2/6 72/30-1/6 72/15-1/12 72/15-3/6 72/45-1/6 72/15-1/18 72/15-5/6 72/75-1/6 72/15-1/30 72/15-7/6 72/15-1/42