Subtract 84/40 from 28/10
1st number: 2 8/10, 2nd number: 2 4/40
28/10 - 84/40 is 7/10.
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,
28/10 = 28 × 4/10 × 4 = 112/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
84/40 = 84 × 1/40 × 1 = 84/40 - Subtract the two like fractions:
112/40 - 84/40 = 112 - 84/40 = 28/40 - 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: 56/10-84/40 28/20-84/40 28/10-84/80 84/10-84/40 28/30-84/40 28/50-84/40 28/70-84/40