Subtract 8/10 from 10/30
10/30 - 8/10 is -7/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
10/30 = 10 × 1/30 × 1 = 10/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
8/10 = 8 × 3/10 × 3 = 24/30 - Subtract the two like fractions:
10/30 - 24/30 = 10 - 24/30 = -14/30 - After reducing the fraction, the answer is -7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/30-8/10 10/30-16/10 10/60-8/10 10/30-8/20 10/30-24/10 10/90-8/10 10/30-8/30 50/30-8/10 10/30-40/10 10/30-8/50 70/30-8/10 10/30-56/10 10/30-8/70