Subtract 75/36 from 42/70
1st number: 42/70, 2nd number: 2 3/36
42/70 - 75/36 is -89/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
42/70 = 42 × 18/70 × 18 = 756/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
75/36 = 75 × 35/36 × 35 = 2625/1260 - Subtract the two like fractions:
756/1260 - 2625/1260 = 756 - 2625/1260 = -1869/1260 - After reducing the fraction, the answer is -89/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-75/36 42/70-75/72