Subtract 35/42 from 4/15
4/15 - 35/42 is -17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
4/15 = 4 × 14/15 × 14 = 56/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
35/42 = 35 × 5/42 × 5 = 175/210 - Subtract the two like fractions:
56/210 - 175/210 = 56 - 175/210 = -119/210 - After reducing the fraction, the answer is -17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15-35/42 4/15-70/42 4/30-35/42 4/15-35/84 12/15-35/42 4/45-35/42 20/15-35/42 4/75-35/42 28/15-35/42