Subtract 6/90 from 42/24
1st number: 1 18/24, 2nd number: 6/90
42/24 - 6/90 is 101/60.
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,
42/24 = 42 × 15/24 × 15 = 630/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
6/90 = 6 × 4/90 × 4 = 24/360 - Subtract the two like fractions:
630/360 - 24/360 = 630 - 24/360 = 606/360 - After reducing the fraction, the answer is 101/60
- In mixed form: 141/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24-6/90 42/24-12/90 42/48-6/90 42/24-18/90 42/72-6/90 42/24-30/90 42/24-42/90