Subtract 21/98 from 90/4
1st number: 22 2/4, 2nd number: 21/98
90/4 - 21/98 is 156/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 98 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 4 × 49 = 196,
90/4 = 90 × 49/4 × 49 = 4410/196 - Likewise, for the 2nd fraction, since 98 × 2 = 196,
21/98 = 21 × 2/98 × 2 = 42/196 - Subtract the two like fractions:
4410/196 - 42/196 = 4410 - 42/196 = 4368/196 - After reducing the fraction, the answer is 156/7
- In mixed form: 222/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-42/98 90/8-21/98 90/4-63/98 90/12-21/98 90/20-21/98 90/28-21/98