Subtract 48/18 from 3/84
1st number: 3/84, 2nd number: 2 12/18
3/84 - 48/18 is -221/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
3/84 = 3 × 3/84 × 3 = 9/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
48/18 = 48 × 14/18 × 14 = 672/252 - Subtract the two like fractions:
9/252 - 672/252 = 9 - 672/252 = -663/252 - After reducing the fraction, the answer is -221/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84-48/18 3/84-96/18 3/84-48/36 9/84-48/18 3/84-48/54 15/84-48/18 3/84-48/90 21/84-48/18