Subtract 75/36 from 42/24
1st number: 1 18/24, 2nd number: 2 3/36
42/24 - 75/36 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
42/24 = 42 × 3/24 × 3 = 126/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
75/36 = 75 × 2/36 × 2 = 150/72 - Subtract the two like fractions:
126/72 - 150/72 = 126 - 150/72 = -24/72 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24-75/36 42/48-75/36 42/24-75/72 42/72-75/36