Subtract 18/12 from 35/72
1st number: 35/72, 2nd number: 1 6/12
35/72 - 18/12 is -73/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
35/72 = 35 × 1/72 × 1 = 35/72 - Likewise, for the 2nd fraction, since 12 × 6 = 72,
18/12 = 18 × 6/12 × 6 = 108/72 - Subtract the two like fractions:
35/72 - 108/72 = 35 - 108/72 = -73/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72-18/12 35/72-36/12 35/72-18/24 35/72-54/12 35/72-18/36 35/72-90/12 35/72-18/60 35/72-18/84