Subtract 10/49 from 18/20
18/20 - 10/49 is 341/490.
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,
18/20 = 18 × 49/20 × 49 = 882/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
10/49 = 10 × 20/49 × 20 = 200/980 - Subtract the two like fractions:
882/980 - 200/980 = 882 - 200/980 = 682/980 - After reducing the fraction, the answer is 341/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20-10/49 18/20-20/49 18/40-10/49 18/20-10/98 54/20-10/49 18/20-30/49 18/60-10/49 90/20-10/49 18/20-50/49 18/20-70/49