Subtract 21/14 from 49/30
1st number: 1 19/30, 2nd number: 1 7/14
49/30 - 21/14 is 2/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
49/30 = 49 × 7/30 × 7 = 343/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
21/14 = 21 × 15/14 × 15 = 315/210 - Subtract the two like fractions:
343/210 - 315/210 = 343 - 315/210 = 28/210 - After reducing the fraction, the answer is 2/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/30-21/14 49/30-42/14 49/60-21/14 49/30-21/28 49/30-63/14 49/90-21/14 49/30-21/42 49/30-21/70 49/30-21/98