Subtract 16/98 from 21/42
21/42 - 16/98 is 33/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
21/42 = 21 × 7/42 × 7 = 147/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
16/98 = 16 × 3/98 × 3 = 48/294 - Subtract the two like fractions:
147/294 - 48/294 = 147 - 48/294 = 99/294 - After reducing the fraction, the answer is 33/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 21/42-32/98 21/84-16/98 63/42-16/98 21/42-48/98 21/42-80/98