Subtract 42/5 from 81/3
1st number: 27 0/3, 2nd number: 8 2/5
81/3 - 42/5 is 93/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
81/3 = 81 × 5/3 × 5 = 405/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
42/5 = 42 × 3/5 × 3 = 126/15 - Subtract the two like fractions:
405/15 - 126/15 = 405 - 126/15 = 279/15 - After reducing the fraction, the answer is 93/5
- In mixed form: 183/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3-84/5 81/6-42/5 81/3-42/10 81/9-42/5 81/3-42/15 81/15-42/5 81/3-42/25 81/21-42/5 81/3-42/35