Subtract 3/98 from 3/40
3/40 - 3/98 is 87/1960.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 98 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
3/40 = 3 × 49/40 × 49 = 147/1960 - Likewise, for the 2nd fraction, since 98 × 20 = 1960,
3/98 = 3 × 20/98 × 20 = 60/1960 - Subtract the two like fractions:
147/1960 - 60/1960 = 147 - 60/1960 = 87/1960
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40-3/98 3/40-6/98 3/80-3/98 9/40-3/98 3/40-9/98 15/40-3/98 3/40-15/98 21/40-3/98 3/40-21/98