Subtract 15/30 from 6/8
6/8 - 15/30 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
6/8 = 6 × 15/8 × 15 = 90/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
15/30 = 15 × 4/30 × 4 = 60/120 - Subtract the two like fractions:
90/120 - 60/120 = 90 - 60/120 = 30/120 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/8-15/30 6/16-15/30 6/8-15/60 18/8-15/30 6/8-45/30 6/24-15/30 6/8-15/90 30/8-15/30 6/8-75/30 6/40-15/30 42/8-15/30 6/56-15/30