Subtract 7/90 from 28/2
1st number: 14 0/2, 2nd number: 7/90
28/2 - 7/90 is 1253/90.
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,
7/90 = 7 × 1/90 × 1 = 7/90 - Subtract the two like fractions:
1260/90 - 7/90 = 1260 - 7/90 = 1253/90 - In mixed form: 1383/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/2-7/90 28/2-14/90 28/4-7/90 84/2-7/90 28/2-21/90 28/6-7/90 28/2-35/90 28/10-7/90 28/2-49/90 28/14-7/90