Subtract 24/12 from 30/8
1st number: 3 6/8, 2nd number: 2 0/12
30/8 - 24/12 is 7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
30/8 = 30 × 3/8 × 3 = 90/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
24/12 = 24 × 2/12 × 2 = 48/24 - Subtract the two like fractions:
90/24 - 48/24 = 90 - 48/24 = 42/24 - After reducing the fraction, the answer is 7/4
- In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8-24/12 30/8-48/12 30/16-24/12 90/8-24/12 30/8-72/12 30/24-24/12 30/8-24/36 30/40-24/12 30/8-24/60 30/56-24/12 30/8-24/84