Subtract 15/42 from 20/3
1st number: 6 2/3, 2nd number: 15/42
20/3 - 15/42 is 265/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
20/3 = 20 × 14/3 × 14 = 280/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42 - Subtract the two like fractions:
280/42 - 15/42 = 280 - 15/42 = 265/42 - In mixed form: 613/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3-15/42 20/3-30/42 20/6-15/42 20/3-15/84 60/3-15/42 20/3-45/42 20/9-15/42 20/3-75/42 20/15-15/42 20/21-15/42