Subtract 21/90 from 98/14
1st number: 7 0/14, 2nd number: 21/90
98/14 - 21/90 is 203/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
98/14 = 98 × 45/14 × 45 = 4410/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Subtract the two like fractions:
4410/630 - 147/630 = 4410 - 147/630 = 4263/630 - After reducing the fraction, the answer is 203/30
- In mixed form: 623/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/14-42/90 98/28-21/90 98/14-63/90 98/42-21/90 98/70-21/90