Subtract 8/40 from 27/10
1st number: 2 7/10, 2nd number: 8/40
27/10 - 8/40 is 5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
27/10 = 27 × 4/10 × 4 = 108/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
8/40 = 8 × 1/40 × 1 = 8/40 - Subtract the two like fractions:
108/40 - 8/40 = 108 - 8/40 = 100/40 - After reducing the fraction, the answer is 5/2
- In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10-8/40 27/10-16/40 27/20-8/40 27/10-8/80 81/10-8/40 27/10-24/40 27/30-8/40 27/50-8/40 27/10-56/40 27/70-8/40