Subtract 15/70 from 90/2
1st number: 45 0/2, 2nd number: 15/70
90/2 - 15/70 is 627/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
90/2 = 90 × 35/2 × 35 = 3150/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Subtract the two like fractions:
3150/70 - 15/70 = 3150 - 15/70 = 3135/70 - After reducing the fraction, the answer is 627/14
- In mixed form: 4411/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-30/70 90/4-15/70 90/2-45/70 90/6-15/70 90/2-75/70 90/10-15/70 90/14-15/70