Subtract 50/30 from 18/9
1st number: 2 0/9, 2nd number: 1 20/30
18/9 - 50/30 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
18/9 = 18 × 10/9 × 10 = 180/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
50/30 = 50 × 3/30 × 3 = 150/90 - Subtract the two like fractions:
180/90 - 150/90 = 180 - 150/90 = 30/90 - After reducing the fraction, the answer is 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9-50/30 18/9-50/60 54/9-50/30 18/27-50/30 18/9-50/90 90/9-50/30 18/45-50/30 18/63-50/30