Subtract 70/18 from 42/3
1st number: 14 0/3, 2nd number: 3 16/18
42/3 - 70/18 is 91/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
42/3 = 42 × 6/3 × 6 = 252/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
70/18 = 70 × 1/18 × 1 = 70/18 - Subtract the two like fractions:
252/18 - 70/18 = 252 - 70/18 = 182/18 - After reducing the fraction, the answer is 91/9
- In mixed form: 101/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/3-70/18 42/6-70/18 42/3-70/36 42/9-70/18 42/3-70/54 42/15-70/18 42/3-70/90 42/21-70/18