Subtract 70/18 from 84/49
1st number: 1 35/49, 2nd number: 3 16/18
84/49 - 70/18 is -137/63.
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,
84/49 = 84 × 18/49 × 18 = 1512/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
70/18 = 70 × 49/18 × 49 = 3430/882 - Subtract the two like fractions:
1512/882 - 3430/882 = 1512 - 3430/882 = -1918/882 - After reducing the fraction, the answer is -137/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98-70/18 84/49-70/36 84/49-70/54 84/49-70/90