Subtract 30/10 from 6/8
1st number: 6/8, 2nd number: 3 0/10
6/8 - 30/10 is -9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
6/8 = 6 × 5/8 × 5 = 30/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
30/10 = 30 × 4/10 × 4 = 120/40 - Subtract the two like fractions:
30/40 - 120/40 = 30 - 120/40 = -90/40 - After reducing the fraction, the answer is -9/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/8-30/10 6/8-60/10 6/16-30/10 6/8-30/20 18/8-30/10 6/8-90/10 6/24-30/10 30/8-30/10 6/40-30/10 6/8-30/50 42/8-30/10 6/56-30/10 6/8-30/70