Subtract 3/60 from 2/21
2/21 - 3/60 is 19/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
2/21 = 2 × 20/21 × 20 = 40/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
3/60 = 3 × 7/60 × 7 = 21/420 - Subtract the two like fractions:
40/420 - 21/420 = 40 - 21/420 = 19/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21-3/60 2/21-6/60 2/42-3/60 6/21-3/60 2/21-9/60 2/63-3/60 10/21-3/60 2/21-15/60 14/21-3/60 2/21-21/60