Subtract 72/60 from 7/18
1st number: 7/18, 2nd number: 1 12/60
7/18 - 72/60 is -73/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
7/18 = 7 × 10/18 × 10 = 70/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
72/60 = 72 × 3/60 × 3 = 216/180 - Subtract the two like fractions:
70/180 - 216/180 = 70 - 216/180 = -146/180 - After reducing the fraction, the answer is -73/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/18-72/60 7/36-72/60 21/18-72/60 7/54-72/60 35/18-72/60 7/90-72/60 49/18-72/60