Subtract 14/9 from 28/84
1st number: 28/84, 2nd number: 1 5/9
28/84 - 14/9 is -11/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
28/84 = 28 × 3/84 × 3 = 84/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
14/9 = 14 × 28/9 × 28 = 392/252 - Subtract the two like fractions:
84/252 - 392/252 = 84 - 392/252 = -308/252 - After reducing the fraction, the answer is -11/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84-14/9 28/84-28/9 28/84-14/18 28/84-42/9 28/84-14/27 28/84-70/9 28/84-14/45 28/84-98/9 28/84-14/63