Subtract 21/25 from 3/60
3/60 - 21/25 is -79/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 60 × 5 = 300,
3/60 = 3 × 5/60 × 5 = 15/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
21/25 = 21 × 12/25 × 12 = 252/300 - Subtract the two like fractions:
15/300 - 252/300 = 15 - 252/300 = -237/300 - After reducing the fraction, the answer is -79/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/60-21/25 3/60-42/25 3/60-21/50 9/60-21/25 3/60-63/25 3/60-21/75 15/60-21/25 21/60-21/25