Subtract 28/10 from 84/8
1st number: 10 4/8, 2nd number: 2 8/10
84/8 - 28/10 is 77/10.
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,
84/8 = 84 × 5/8 × 5 = 420/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
28/10 = 28 × 4/10 × 4 = 112/40 - Subtract the two like fractions:
420/40 - 112/40 = 420 - 112/40 = 308/40 - After reducing the fraction, the answer is 77/10
- In mixed form: 77/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-56/10 84/16-28/10 84/8-28/20 84/8-84/10 84/24-28/10 84/8-28/30 84/40-28/10 84/8-28/50 84/56-28/10 84/8-28/70