Subtract 80/84 from 40/18
1st number: 2 4/18, 2nd number: 80/84
40/18 - 80/84 is 80/63.
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,
40/18 = 40 × 14/18 × 14 = 560/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
80/84 = 80 × 3/84 × 3 = 240/252 - Subtract the two like fractions:
560/252 - 240/252 = 560 - 240/252 = 320/252 - After reducing the fraction, the answer is 80/63
- In mixed form: 117/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18-80/84 40/36-80/84 40/54-80/84 40/90-80/84