Subtract 2/75 from 21/20
1st number: 1 1/20, 2nd number: 2/75
21/20 - 2/75 is 307/300.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
21/20 = 21 × 15/20 × 15 = 315/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
2/75 = 2 × 4/75 × 4 = 8/300 - Subtract the two like fractions:
315/300 - 8/300 = 315 - 8/300 = 307/300 - In mixed form: 17/300
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/20-2/75 21/20-4/75 21/40-2/75 63/20-2/75 21/20-6/75 21/60-2/75 21/20-10/75 21/20-14/75