Subtract 84/70 from 7/49
1st number: 7/49, 2nd number: 1 14/70
7/49 - 84/70 is -37/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
7/49 = 7 × 10/49 × 10 = 70/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
84/70 = 84 × 7/70 × 7 = 588/490 - Subtract the two like fractions:
70/490 - 588/490 = 70 - 588/490 = -518/490 - After reducing the fraction, the answer is -37/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/49-84/70 7/98-84/70 21/49-84/70 35/49-84/70