Subtract 16/6 from 84/21
1st number: 4 0/21, 2nd number: 2 4/6
84/21 - 16/6 is 4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
84/21 = 84 × 2/21 × 2 = 168/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
16/6 = 16 × 7/6 × 7 = 112/42 - Subtract the two like fractions:
168/42 - 112/42 = 168 - 112/42 = 56/42 - After reducing the fraction, the answer is 4/3
- In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21-32/6 84/42-16/6 84/21-16/12 84/21-48/6 84/63-16/6 84/21-16/18 84/21-80/6 84/21-16/30 84/21-16/42