Subtract 70/49 from 6/18
1st number: 6/18, 2nd number: 1 21/49
6/18 - 70/49 is -23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 49 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 18 × 49 = 882,
6/18 = 6 × 49/18 × 49 = 294/882 - Likewise, for the 2nd fraction, since 49 × 18 = 882,
70/49 = 70 × 18/49 × 18 = 1260/882 - Subtract the two like fractions:
294/882 - 1260/882 = 294 - 1260/882 = -966/882 - After reducing the fraction, the answer is -23/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18-70/49 6/36-70/49 6/18-70/98 6/54-70/49 30/18-70/49 6/90-70/49 42/18-70/49