Subtract 35/42 from 4/5
4/5 - 35/42 is -1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
4/5 = 4 × 42/5 × 42 = 168/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
35/42 = 35 × 5/42 × 5 = 175/210 - Subtract the two like fractions:
168/210 - 175/210 = 168 - 175/210 = -7/210 - After reducing the fraction, the answer is -1/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5-35/42 4/5-70/42 4/10-35/42 4/5-35/84 12/5-35/42 4/15-35/42 20/5-35/42 4/25-35/42 28/5-35/42 4/35-35/42