Subtract 8/30 from 18/36
18/36 - 8/30 is 7/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 30 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
18/36 = 18 × 5/36 × 5 = 90/180 - Likewise, for the 2nd fraction, since 30 × 6 = 180,
8/30 = 8 × 6/30 × 6 = 48/180 - Subtract the two like fractions:
90/180 - 48/180 = 90 - 48/180 = 42/180 - After reducing the fraction, the answer is 7/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36-16/30 18/72-8/30 18/36-8/60 54/36-8/30 18/36-24/30 18/36-8/90 90/36-8/30 18/36-40/30 18/36-56/30