Subtract 42/24 from 30/10
1st number: 3 0/10, 2nd number: 1 18/24
30/10 - 42/24 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 10 × 12 = 120,
30/10 = 30 × 12/10 × 12 = 360/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
42/24 = 42 × 5/24 × 5 = 210/120 - Subtract the two like fractions:
360/120 - 210/120 = 360 - 210/120 = 150/120 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10-42/24 30/10-84/24 30/20-42/24 30/10-42/48 90/10-42/24 30/10-42/72 30/50-42/24 30/70-42/24