Subtract 15/90 from 28/2
1st number: 14 0/2, 2nd number: 15/90
28/2 - 15/90 is 83/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
28/2 = 28 × 45/2 × 45 = 1260/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Subtract the two like fractions:
1260/90 - 15/90 = 1260 - 15/90 = 1245/90 - After reducing the fraction, the answer is 83/6
- In mixed form: 135/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/2-15/90 28/2-30/90 28/4-15/90 84/2-15/90 28/2-45/90 28/6-15/90 28/2-75/90 28/10-15/90 28/14-15/90