Subtract 2/5 from 18/10
1st number: 1 8/10, 2nd number: 2/5
18/10 - 2/5 is 7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 10 × 1 = 10,
18/10 = 18 × 1/10 × 1 = 18/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
2/5 = 2 × 2/5 × 2 = 4/10 - Subtract the two like fractions:
18/10 - 4/10 = 18 - 4/10 = 14/10 - After reducing the fraction, the answer is 7/5
- In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10-2/5 18/10-4/5 18/20-2/5 18/10-2/10 54/10-2/5 18/10-6/5 18/30-2/5 18/10-2/15 90/10-2/5 18/10-10/5 18/50-2/5 18/10-2/25 18/10-14/5 18/70-2/5 18/10-2/35