Subtract 3/90 from 49/18
1st number: 2 13/18, 2nd number: 3/90
49/18 - 3/90 is 121/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
49/18 = 49 × 5/18 × 5 = 245/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
3/90 = 3 × 1/90 × 1 = 3/90 - Subtract the two like fractions:
245/90 - 3/90 = 245 - 3/90 = 242/90 - After reducing the fraction, the answer is 121/45
- In mixed form: 231/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18-3/90 49/18-6/90 49/36-3/90 49/18-9/90 49/54-3/90 49/18-15/90 49/90-3/90 49/18-21/90