Subtract 70/98 from 3/10
3/10 - 70/98 is -29/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 10 × 49 = 490,
3/10 = 3 × 49/10 × 49 = 147/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
70/98 = 70 × 5/98 × 5 = 350/490 - Subtract the two like fractions:
147/490 - 350/490 = 147 - 350/490 = -203/490 - After reducing the fraction, the answer is -29/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-70/98 3/20-70/98 9/10-70/98 3/30-70/98 15/10-70/98 3/50-70/98 21/10-70/98 3/70-70/98