Subtract 42/90 from 90/24
1st number: 3 18/24, 2nd number: 42/90
90/24 - 42/90 is 197/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
90/24 = 90 × 15/24 × 15 = 1350/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
42/90 = 42 × 4/90 × 4 = 168/360 - Subtract the two like fractions:
1350/360 - 168/360 = 1350 - 168/360 = 1182/360 - After reducing the fraction, the answer is 197/60
- In mixed form: 317/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24-84/90 90/48-42/90 90/72-42/90