Subtract 28/14 from 7/84
1st number: 7/84, 2nd number: 2 0/14
7/84 - 28/14 is -23/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 14 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
7/84 = 7 × 1/84 × 1 = 7/84 - Likewise, for the 2nd fraction, since 14 × 6 = 84,
28/14 = 28 × 6/14 × 6 = 168/84 - Subtract the two like fractions:
7/84 - 168/84 = 7 - 168/84 = -161/84 - After reducing the fraction, the answer is -23/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84-28/14 7/84-56/14 21/84-28/14 7/84-84/14 7/84-28/42 35/84-28/14 7/84-28/70 49/84-28/14 7/84-28/98