Subtract 27/10 from 28/8
1st number: 3 4/8, 2nd number: 2 7/10
28/8 - 27/10 is 4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
28/8 = 28 × 5/8 × 5 = 140/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
27/10 = 27 × 4/10 × 4 = 108/40 - Subtract the two like fractions:
140/40 - 108/40 = 140 - 108/40 = 32/40 - After reducing the fraction, the answer is 4/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8-27/10 28/8-54/10 28/16-27/10 28/8-27/20 84/8-27/10 28/8-81/10 28/24-27/10 28/8-27/30 28/40-27/10 28/8-27/50 28/56-27/10 28/8-27/70