Subtract 15/70 from 90/14
1st number: 6 6/14, 2nd number: 15/70
90/14 - 15/70 is 87/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
90/14 = 90 × 5/14 × 5 = 450/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Subtract the two like fractions:
450/70 - 15/70 = 450 - 15/70 = 435/70 - After reducing the fraction, the answer is 87/14
- In mixed form: 63/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14-30/70 90/28-15/70 90/14-45/70 90/42-15/70 90/14-75/70 90/70-15/70 90/98-15/70