Subtract 30/28 from 40/6
1st number: 6 4/6, 2nd number: 1 2/28
40/6 - 30/28 is 235/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 6 × 14 = 84,
40/6 = 40 × 14/6 × 14 = 560/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
30/28 = 30 × 3/28 × 3 = 90/84 - Subtract the two like fractions:
560/84 - 90/84 = 560 - 90/84 = 470/84 - After reducing the fraction, the answer is 235/42
- In mixed form: 525/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-30/28 40/6-60/28 40/12-30/28 40/6-30/56 40/6-90/28 40/18-30/28 40/6-30/84 40/30-30/28 40/42-30/28