Subtract 18/60 from 28/18
1st number: 1 10/18, 2nd number: 18/60
28/18 - 18/60 is 113/90.
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,
28/18 = 28 × 10/18 × 10 = 280/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
18/60 = 18 × 3/60 × 3 = 54/180 - Subtract the two like fractions:
280/180 - 54/180 = 280 - 54/180 = 226/180 - After reducing the fraction, the answer is 113/90
- In mixed form: 123/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18-18/60 28/18-36/60 28/36-18/60 84/18-18/60 28/18-54/60 28/54-18/60 28/18-90/60 28/90-18/60