Subtract 3/98 from 4/90
4/90 - 3/98 is 61/4410.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 98 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
4/90 = 4 × 49/90 × 49 = 196/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
3/98 = 3 × 45/98 × 45 = 135/4410 - Subtract the two like fractions:
196/4410 - 135/4410 = 196 - 135/4410 = 61/4410
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90-3/98 4/90-6/98 12/90-3/98 4/90-9/98 20/90-3/98 4/90-15/98 28/90-3/98 4/90-21/98