Subtract 3/40 from 2/49
2/49 - 3/40 is -67/1960.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 49 × 40 = 1960,
2/49 = 2 × 40/49 × 40 = 80/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
3/40 = 3 × 49/40 × 49 = 147/1960 - Subtract the two like fractions:
80/1960 - 147/1960 = 80 - 147/1960 = -67/1960
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/49-3/40 2/49-6/40 2/98-3/40 2/49-3/80 6/49-3/40 2/49-9/40 10/49-3/40 2/49-15/40 14/49-3/40 2/49-21/40