Subtract 1/18 from 42/4
1st number: 10 2/4, 2nd number: 1/18
42/4 - 1/18 is 94/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 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 18 × 2 = 36,
1/18 = 1 × 2/18 × 2 = 2/36 - Subtract the two like fractions:
378/36 - 2/36 = 378 - 2/36 = 376/36 - After reducing the fraction, the answer is 94/9
- In mixed form: 104/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-1/18 42/4-2/18 42/8-1/18 42/4-1/36 42/4-3/18 42/12-1/18 42/4-1/54 42/4-5/18 42/20-1/18 42/4-1/90 42/4-7/18 42/28-1/18