Subtract 45/98 from 9/21
9/21 - 45/98 is -3/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 21 × 14 = 294,
9/21 = 9 × 14/21 × 14 = 126/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
45/98 = 45 × 3/98 × 3 = 135/294 - Subtract the two like fractions:
126/294 - 135/294 = 126 - 135/294 = -9/294 - After reducing the fraction, the answer is -3/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21-45/98 9/21-90/98 9/42-45/98 27/21-45/98 9/63-45/98 45/21-45/98 63/21-45/98