Subtract 4/45 from 60/21
1st number: 2 18/21, 2nd number: 4/45
60/21 - 4/45 is 872/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
60/21 = 60 × 15/21 × 15 = 900/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
4/45 = 4 × 7/45 × 7 = 28/315 - Subtract the two like fractions:
900/315 - 28/315 = 900 - 28/315 = 872/315 - In mixed form: 2242/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21-8/45 60/42-4/45 60/21-4/90 60/21-12/45 60/63-4/45 60/21-20/45 60/21-28/45