Subtract 14/21 from 1/84
1/84 - 14/21 is -55/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
1/84 = 1 × 1/84 × 1 = 1/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
14/21 = 14 × 4/21 × 4 = 56/84 - Subtract the two like fractions:
1/84 - 56/84 = 1 - 56/84 = -55/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/84-14/21 1/84-28/21 1/84-14/42 3/84-14/21 1/84-42/21 1/84-14/63 5/84-14/21 1/84-70/21 7/84-14/21 1/84-98/21