Subtract 35/21 from 12/3
1st number: 4 0/3, 2nd number: 1 14/21
12/3 - 35/21 is 7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
12/3 = 12 × 7/3 × 7 = 84/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
35/21 = 35 × 1/21 × 1 = 35/21 - Subtract the two like fractions:
84/21 - 35/21 = 84 - 35/21 = 49/21 - After reducing the fraction, the answer is 7/3
- In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3-35/21 12/3-70/21 12/6-35/21 12/3-35/42 36/3-35/21 12/9-35/21 12/3-35/63 60/3-35/21 12/15-35/21 84/3-35/21 12/21-35/21