Subtract 40/28 from 24/18
1st number: 1 6/18, 2nd number: 1 12/28
24/18 - 40/28 is -2/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
24/18 = 24 × 14/18 × 14 = 336/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
40/28 = 40 × 9/28 × 9 = 360/252 - Subtract the two like fractions:
336/252 - 360/252 = 336 - 360/252 = -24/252 - After reducing the fraction, the answer is -2/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/18-40/28 24/18-80/28 24/36-40/28 24/18-40/56 72/18-40/28 24/54-40/28 24/18-40/84 24/90-40/28