Subtract 9/10 from 4/98
4/98 - 9/10 is -421/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
4/98 = 4 × 5/98 × 5 = 20/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
9/10 = 9 × 49/10 × 49 = 441/490 - Subtract the two like fractions:
20/490 - 441/490 = 20 - 441/490 = -421/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/98-9/10 4/98-18/10 4/98-9/20 12/98-9/10 4/98-27/10 4/98-9/30 20/98-9/10 4/98-45/10 4/98-9/50 28/98-9/10 4/98-63/10 4/98-9/70