Subtract 27/21 from 40/6
1st number: 6 4/6, 2nd number: 1 6/21
40/6 - 27/21 is 113/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
40/6 = 40 × 7/6 × 7 = 280/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
27/21 = 27 × 2/21 × 2 = 54/42 - Subtract the two like fractions:
280/42 - 54/42 = 280 - 54/42 = 226/42 - After reducing the fraction, the answer is 113/21
- In mixed form: 58/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-27/21 40/6-54/21 40/12-27/21 40/6-27/42 40/6-81/21 40/18-27/21 40/6-27/63 40/30-27/21 40/42-27/21