Subtract 54/98 from 9/20
9/20 - 54/98 is -99/980.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
9/20 = 9 × 49/20 × 49 = 441/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
54/98 = 54 × 10/98 × 10 = 540/980 - Subtract the two like fractions:
441/980 - 540/980 = 441 - 540/980 = -99/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20-54/98 9/40-54/98 27/20-54/98 9/60-54/98 45/20-54/98 63/20-54/98