Subtract 48/60 from 21/18
1st number: 1 3/18, 2nd number: 48/60
21/18 - 48/60 is 11/30.
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,
21/18 = 21 × 10/18 × 10 = 210/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
48/60 = 48 × 3/60 × 3 = 144/180 - Subtract the two like fractions:
210/180 - 144/180 = 210 - 144/180 = 66/180 - After reducing the fraction, the answer is 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/18-48/60 21/18-96/60 21/36-48/60 63/18-48/60 21/54-48/60 21/90-48/60