Subtract 90/14 from 40/6
1st number: 6 4/6, 2nd number: 6 6/14
40/6 - 90/14 is 5/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 14 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 14 × 3 = 42,
90/14 = 90 × 3/14 × 3 = 270/42 - Subtract the two like fractions:
280/42 - 270/42 = 280 - 270/42 = 10/42 - After reducing the fraction, the answer is 5/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-90/14 40/12-90/14 40/6-90/28 40/18-90/14 40/6-90/42 40/30-90/14 40/6-90/70 40/42-90/14 40/6-90/98