Subtract 6/18 from 30/8
1st number: 3 6/8, 2nd number: 6/18
30/8 - 6/18 is 41/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
30/8 = 30 × 9/8 × 9 = 270/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
6/18 = 6 × 4/18 × 4 = 24/72 - Subtract the two like fractions:
270/72 - 24/72 = 270 - 24/72 = 246/72 - After reducing the fraction, the answer is 41/12
- In mixed form: 35/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8-6/18 30/8-12/18 30/16-6/18 30/8-6/36 90/8-6/18 30/24-6/18 30/8-6/54 30/8-30/18 30/40-6/18 30/8-6/90 30/8-42/18 30/56-6/18