Subtract 3/30 from 8/10
8/10 - 3/30 is 7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
8/10 = 8 × 3/10 × 3 = 24/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
3/30 = 3 × 1/30 × 1 = 3/30 - Subtract the two like fractions:
24/30 - 3/30 = 24 - 3/30 = 21/30 - After reducing the fraction, the answer is 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10-3/30 8/10-6/30 8/20-3/30 8/10-3/60 24/10-3/30 8/10-9/30 8/30-3/30 8/10-3/90 40/10-3/30 8/10-15/30 8/50-3/30 56/10-3/30 8/10-21/30 8/70-3/30