Subtract 36/84 from 2/18
2/18 - 36/84 is -20/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
2/18 = 2 × 14/18 × 14 = 28/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
36/84 = 36 × 3/84 × 3 = 108/252 - Subtract the two like fractions:
28/252 - 108/252 = 28 - 108/252 = -80/252 - After reducing the fraction, the answer is -20/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18-36/84 2/18-72/84 2/36-36/84 6/18-36/84 2/54-36/84 10/18-36/84 2/90-36/84 14/18-36/84