Subtract 3/49 from 1/70
1/70 - 3/49 is -23/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
1/70 = 1 × 7/70 × 7 = 7/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
3/49 = 3 × 10/49 × 10 = 30/490 - Subtract the two like fractions:
7/490 - 30/490 = 7 - 30/490 = -23/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-3/49 1/70-6/49 1/70-3/98 3/70-3/49 1/70-9/49 5/70-3/49 1/70-15/49 7/70-3/49 1/70-21/49