Subtract 21/6 from 84/10
1st number: 8 4/10, 2nd number: 3 3/6
84/10 - 21/6 is 49/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
84/10 = 84 × 3/10 × 3 = 252/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
21/6 = 21 × 5/6 × 5 = 105/30 - Subtract the two like fractions:
252/30 - 105/30 = 252 - 105/30 = 147/30 - After reducing the fraction, the answer is 49/10
- In mixed form: 49/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-42/6 84/20-21/6 84/10-21/12 84/10-63/6 84/30-21/6 84/10-21/18 84/50-21/6 84/10-21/30 84/70-21/6 84/10-21/42