Subtract 12/5 from 35/42
1st number: 35/42, 2nd number: 2 2/5
35/42 - 12/5 is -47/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
35/42 = 35 × 5/42 × 5 = 175/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
12/5 = 12 × 42/5 × 42 = 504/210 - Subtract the two like fractions:
175/210 - 504/210 = 175 - 504/210 = -329/210 - After reducing the fraction, the answer is -47/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42-12/5 35/42-24/5 35/84-12/5 35/42-12/10 35/42-36/5 35/42-12/15 35/42-60/5 35/42-12/25 35/42-84/5 35/42-12/35