Subtract 20/28 from 30/6
1st number: 5 0/6, 2nd number: 20/28
30/6 - 20/28 is 30/7.
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,
30/6 = 30 × 14/6 × 14 = 420/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
20/28 = 20 × 3/28 × 3 = 60/84 - Subtract the two like fractions:
420/84 - 60/84 = 420 - 60/84 = 360/84 - After reducing the fraction, the answer is 30/7
- In mixed form: 42/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/6-20/28 30/6-40/28 30/12-20/28 30/6-20/56 90/6-20/28 30/6-60/28 30/18-20/28 30/6-20/84 30/42-20/28