Subtract 40/20 from 6/49
1st number: 6/49, 2nd number: 2 0/20
6/49 - 40/20 is -92/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
6/49 = 6 × 20/49 × 20 = 120/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
40/20 = 40 × 49/20 × 49 = 1960/980 - Subtract the two like fractions:
120/980 - 1960/980 = 120 - 1960/980 = -1840/980 - After reducing the fraction, the answer is -92/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/49-40/20 6/49-80/20 6/98-40/20 18/49-40/20 6/49-40/60 30/49-40/20 42/49-40/20