Subtract 21/18 from 5/49
1st number: 5/49, 2nd number: 1 3/18
5/49 - 21/18 is -313/294.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 18 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 49 × 18 = 882,
5/49 = 5 × 18/49 × 18 = 90/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
21/18 = 21 × 49/18 × 49 = 1029/882 - Subtract the two like fractions:
90/882 - 1029/882 = 90 - 1029/882 = -939/882 - After reducing the fraction, the answer is -313/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/49-21/18 5/49-42/18 5/98-21/18 5/49-21/36 15/49-21/18 5/49-63/18 5/49-21/54 25/49-21/18 5/49-21/90 35/49-21/18