Subtract 48/30 from 6/21
1st number: 6/21, 2nd number: 1 18/30
6/21 - 48/30 is -46/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
6/21 = 6 × 10/21 × 10 = 60/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
48/30 = 48 × 7/30 × 7 = 336/210 - Subtract the two like fractions:
60/210 - 336/210 = 60 - 336/210 = -276/210 - After reducing the fraction, the answer is -46/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21-48/30 6/21-96/30 6/42-48/30 6/21-48/60 18/21-48/30 6/63-48/30 6/21-48/90 30/21-48/30 42/21-48/30