Subtract 3/90 from 3/2
1st number: 1 1/2, 2nd number: 3/90
3/2 - 3/90 is 22/15.
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,
3/2 = 3 × 45/2 × 45 = 135/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
3/90 = 3 × 1/90 × 1 = 3/90 - Subtract the two like fractions:
135/90 - 3/90 = 135 - 3/90 = 132/90 - After reducing the fraction, the answer is 22/15
- In mixed form: 17/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/2-3/90 3/2-6/90 3/4-3/90 9/2-3/90 3/2-9/90 3/6-3/90 15/2-3/90 3/2-15/90 3/10-3/90 21/2-3/90 3/2-21/90 3/14-3/90