Subtract 6/48 from 30/21
1st number: 1 9/21, 2nd number: 6/48
30/21 - 6/48 is 73/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
30/21 = 30 × 16/21 × 16 = 480/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
6/48 = 6 × 7/48 × 7 = 42/336 - Subtract the two like fractions:
480/336 - 42/336 = 480 - 42/336 = 438/336 - After reducing the fraction, the answer is 73/56
- In mixed form: 117/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21-6/48 30/21-12/48 30/42-6/48 30/21-6/96 90/21-6/48 30/21-18/48 30/63-6/48 30/21-30/48 30/21-42/48