Subtract 90/24 from 42/10
1st number: 4 2/10, 2nd number: 3 18/24
42/10 - 90/24 is 9/20.
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,
42/10 = 42 × 12/10 × 12 = 504/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
90/24 = 90 × 5/24 × 5 = 450/120 - Subtract the two like fractions:
504/120 - 450/120 = 504 - 450/120 = 54/120 - After reducing the fraction, the answer is 9/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-90/24 42/20-90/24 42/10-90/48 42/30-90/24 42/10-90/72 42/50-90/24 42/70-90/24