Subtract 24/18 from 40/84
1st number: 40/84, 2nd number: 1 6/18
40/84 - 24/18 is -6/7.
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,
40/84 = 40 × 3/84 × 3 = 120/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
24/18 = 24 × 14/18 × 14 = 336/252 - Subtract the two like fractions:
120/252 - 336/252 = 120 - 336/252 = -216/252 - After reducing the fraction, the answer is -6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/84-24/18 40/84-48/18 40/84-24/36 40/84-72/18 40/84-24/54 40/84-24/90