Subtract 4/10 from 1/5
15 - 410 is -15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10 - For the 1st fraction, since 5 × 2 = 10,
15 = 1 × 25 × 2 = 210 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
410 = 4 × 110 × 1 = 410 - Subtract the two fractions:
210 - 410 = 2 - 410 = -210 - After reducing the fraction, the answer is -15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5-4/10 1/5-8/10 1/10-4/10 1/5-4/20 3/5-4/10 1/5-12/10 1/15-4/10 1/5-4/30 1/5-20/10 1/25-4/10 1/5-4/50 7/5-4/10 1/5-28/10 1/35-4/10 1/5-4/70