Subtract 40/49 from 3/40
3/40 - 40/49 is -1453/1960.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 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 49 × 40 = 1960,
40/49 = 40 × 40/49 × 40 = 1600/1960 - Subtract the two like fractions:
147/1960 - 1600/1960 = 147 - 1600/1960 = -1453/1960
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40-40/49 3/40-80/49 3/80-40/49 3/40-40/98 9/40-40/49 15/40-40/49 21/40-40/49