Subtract 10/49 from 84/21
1st number: 4 0/21, 2nd number: 10/49
84/21 - 10/49 is 186/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
84/21 = 84 × 7/21 × 7 = 588/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
10/49 = 10 × 3/49 × 3 = 30/147 - Subtract the two like fractions:
588/147 - 30/147 = 588 - 30/147 = 558/147 - After reducing the fraction, the answer is 186/49
- In mixed form: 339/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21-20/49 84/42-10/49 84/21-10/98 84/21-30/49 84/63-10/49 84/21-50/49 84/21-70/49