Subtract 81/98 from 42/15
1st number: 2 12/15, 2nd number: 81/98
42/15 - 81/98 is 967/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 15 × 98 = 1470,
42/15 = 42 × 98/15 × 98 = 4116/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
81/98 = 81 × 15/98 × 15 = 1215/1470 - Subtract the two like fractions:
4116/1470 - 1215/1470 = 4116 - 1215/1470 = 2901/1470 - After reducing the fraction, the answer is 967/490
- In mixed form: 1477/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15-81/98 42/30-81/98 42/45-81/98 42/75-81/98