Subtract 3/36 from 42/8
1st number: 5 2/8, 2nd number: 3/36
42/8 - 3/36 is 31/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
42/8 = 42 × 9/8 × 9 = 378/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
3/36 = 3 × 2/36 × 2 = 6/72 - Subtract the two like fractions:
378/72 - 6/72 = 378 - 6/72 = 372/72 - After reducing the fraction, the answer is 31/6
- In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-3/36 42/8-6/36 42/16-3/36 42/8-3/72 42/8-9/36 42/24-3/36 42/8-15/36 42/40-3/36 42/8-21/36 42/56-3/36