Subtract 80/30 from 7/24
1st number: 7/24, 2nd number: 2 20/30
7/24 - 80/30 is -19/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
7/24 = 7 × 5/24 × 5 = 35/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
80/30 = 80 × 4/30 × 4 = 320/120 - Subtract the two like fractions:
35/120 - 320/120 = 35 - 320/120 = -285/120 - After reducing the fraction, the answer is -19/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/24-80/30 7/48-80/30 7/24-80/60 21/24-80/30 7/72-80/30 7/24-80/90 35/24-80/30 49/24-80/30