Subtract 4/70 from 2/49
2/49 - 4/70 is -4/245.
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,
2/49 = 2 × 10/49 × 10 = 20/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
4/70 = 4 × 7/70 × 7 = 28/490 - Subtract the two like fractions:
20/490 - 28/490 = 20 - 28/490 = -8/490 - After reducing the fraction, the answer is -4/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/49-4/70 2/49-8/70 2/98-4/70 6/49-4/70 2/49-12/70 10/49-4/70 2/49-20/70 14/49-4/70 2/49-28/70