Subtract 3/98 from 7/10
7/10 - 3/98 is 164/245.
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,
7/10 = 7 × 49/10 × 49 = 343/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
3/98 = 3 × 5/98 × 5 = 15/490 - Subtract the two like fractions:
343/490 - 15/490 = 343 - 15/490 = 328/490 - After reducing the fraction, the answer is 164/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10-3/98 7/10-6/98 7/20-3/98 21/10-3/98 7/10-9/98 7/30-3/98 35/10-3/98 7/10-15/98 7/50-3/98 49/10-3/98 7/10-21/98 7/70-3/98