Subtract 35/21 from 12/5
1st number: 2 2/5, 2nd number: 1 14/21
12/5 - 35/21 is 11/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
12/5 = 12 × 21/5 × 21 = 252/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
35/21 = 35 × 5/21 × 5 = 175/105 - Subtract the two like fractions:
252/105 - 175/105 = 252 - 175/105 = 77/105 - After reducing the fraction, the answer is 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5-35/21 12/5-70/21 12/10-35/21 12/5-35/42 36/5-35/21 12/15-35/21 12/5-35/63 60/5-35/21 12/25-35/21 84/5-35/21 12/35-35/21