Subtract 75/5 from 1/42
1st number: 1/42, 2nd number: 15 0/5
1/42 - 75/5 is -629/42.
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,
1/42 = 1 × 5/42 × 5 = 5/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
75/5 = 75 × 42/5 × 42 = 3150/210 - Subtract the two like fractions:
5/210 - 3150/210 = 5 - 3150/210 = -3145/210 - After reducing the fraction, the answer is -629/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42-75/5 1/84-75/5 1/42-75/10 3/42-75/5 1/42-75/15 5/42-75/5 1/42-75/25 7/42-75/5 1/42-75/35