Subtract 27/24 from 12/30
1st number: 12/30, 2nd number: 1 3/24
12/30 - 27/24 is -29/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
12/30 = 12 × 4/30 × 4 = 48/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
27/24 = 27 × 5/24 × 5 = 135/120 - Subtract the two like fractions:
48/120 - 135/120 = 48 - 135/120 = -87/120 - After reducing the fraction, the answer is -29/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30-27/24 12/30-54/24 12/60-27/24 12/30-27/48 36/30-27/24 12/30-81/24 12/90-27/24 12/30-27/72 60/30-27/24 84/30-27/24