Subtract 18/30 from 49/18
1st number: 2 13/18, 2nd number: 18/30
49/18 - 18/30 is 191/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 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 30 × 3 = 90,
18/30 = 18 × 3/30 × 3 = 54/90 - Subtract the two like fractions:
245/90 - 54/90 = 245 - 54/90 = 191/90 - In mixed form: 211/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18-18/30 49/18-36/30 49/36-18/30 49/18-18/60 49/18-54/30 49/54-18/30 49/18-18/90 49/18-90/30 49/90-18/30