Subtract 1/36 from 42/12
1st number: 3 6/12, 2nd number: 1/36
42/12 - 1/36 is 125/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
42/12 = 42 × 3/12 × 3 = 126/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
1/36 = 1 × 1/36 × 1 = 1/36 - Subtract the two like fractions:
126/36 - 1/36 = 126 - 1/36 = 125/36 - In mixed form: 317/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-1/36 42/12-2/36 42/24-1/36 42/12-1/72 42/12-3/36 42/36-1/36 42/12-5/36 42/60-1/36 42/12-7/36 42/84-1/36