Subtract 80/36 from 42/4
1st number: 10 2/4, 2nd number: 2 8/36
42/4 - 80/36 is 149/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
42/4 = 42 × 9/4 × 9 = 378/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
80/36 = 80 × 1/36 × 1 = 80/36 - Subtract the two like fractions:
378/36 - 80/36 = 378 - 80/36 = 298/36 - After reducing the fraction, the answer is 149/18
- In mixed form: 85/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-80/36 42/8-80/36 42/4-80/72 42/12-80/36 42/20-80/36 42/28-80/36