Subtract 6/49 from 4/40
4/40 - 6/49 is -11/490.
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,
4/40 = 4 × 49/40 × 49 = 196/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
6/49 = 6 × 40/49 × 40 = 240/1960 - Subtract the two like fractions:
196/1960 - 240/1960 = 196 - 240/1960 = -44/1960 - After reducing the fraction, the answer is -11/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/40-6/49 4/40-12/49 4/80-6/49 4/40-6/98 12/40-6/49 4/40-18/49 20/40-6/49 4/40-30/49 28/40-6/49 4/40-42/49