Subtract 4/20 from 5/49
5/49 - 4/20 is -24/245.
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,
5/49 = 5 × 20/49 × 20 = 100/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
4/20 = 4 × 49/20 × 49 = 196/980 - Subtract the two like fractions:
100/980 - 196/980 = 100 - 196/980 = -96/980 - After reducing the fraction, the answer is -24/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/49-4/20 5/49-8/20 5/98-4/20 5/49-4/40 15/49-4/20 5/49-12/20 5/49-4/60 25/49-4/20 35/49-4/20 5/49-28/20