Subtract 20/49 from 15/20
15/20 - 20/49 is 67/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
15/20 = 15 × 49/20 × 49 = 735/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
20/49 = 20 × 20/49 × 20 = 400/980 - Subtract the two like fractions:
735/980 - 400/980 = 735 - 400/980 = 335/980 - After reducing the fraction, the answer is 67/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20-20/49 15/20-40/49 15/40-20/49 15/20-20/98 45/20-20/49 15/20-60/49 15/60-20/49 75/20-20/49