Subtract 42/63 from 90/24
1st number: 3 18/24, 2nd number: 42/63
90/24 - 42/63 is 37/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 24 × 21 = 504,
90/24 = 90 × 21/24 × 21 = 1890/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
42/63 = 42 × 8/63 × 8 = 336/504 - Subtract the two like fractions:
1890/504 - 336/504 = 1890 - 336/504 = 1554/504 - After reducing the fraction, the answer is 37/12
- In mixed form: 31/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24-84/63 90/48-42/63 90/72-42/63