Subtract 3/90 from 15/14
1st number: 1 1/14, 2nd number: 3/90
15/14 - 3/90 is 109/105.
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,
15/14 = 15 × 45/14 × 45 = 675/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
3/90 = 3 × 7/90 × 7 = 21/630 - Subtract the two like fractions:
675/630 - 21/630 = 675 - 21/630 = 654/630 - After reducing the fraction, the answer is 109/105
- In mixed form: 14/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/14-3/90 15/14-6/90 15/28-3/90 45/14-3/90 15/14-9/90 15/42-3/90 75/14-3/90 15/14-15/90 15/70-3/90 15/14-21/90 15/98-3/90