Subtract 30/7 from 28/6
1st number: 4 4/6, 2nd number: 4 2/7
28/6 - 30/7 is 8/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
28/6 = 28 × 7/6 × 7 = 196/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
30/7 = 30 × 6/7 × 6 = 180/42 - Subtract the two like fractions:
196/42 - 180/42 = 196 - 180/42 = 16/42 - After reducing the fraction, the answer is 8/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/6-30/7 28/6-60/7 28/12-30/7 28/6-30/14 84/6-30/7 28/6-90/7 28/18-30/7 28/6-30/21 28/30-30/7 28/6-30/35 28/42-30/7 28/6-30/49