Subtract 80/18 from 7/24
1st number: 7/24, 2nd number: 4 8/18
7/24 - 80/18 is -299/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
7/24 = 7 × 3/24 × 3 = 21/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
80/18 = 80 × 4/18 × 4 = 320/72 - Subtract the two like fractions:
21/72 - 320/72 = 21 - 320/72 = -299/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/24-80/18 7/48-80/18 7/24-80/36 21/24-80/18 7/72-80/18 7/24-80/54 35/24-80/18 7/24-80/90 49/24-80/18