Subtract 6/20 from 24/21
1st number: 1 3/21, 2nd number: 6/20
24/21 - 6/20 is 59/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
24/21 = 24 × 20/21 × 20 = 480/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
6/20 = 6 × 21/20 × 21 = 126/420 - Subtract the two like fractions:
480/420 - 126/420 = 480 - 126/420 = 354/420 - After reducing the fraction, the answer is 59/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21-6/20 24/21-12/20 24/42-6/20 24/21-6/40 72/21-6/20 24/21-18/20 24/63-6/20 24/21-6/60 24/21-30/20 24/21-42/20