Subtract 48/24 from 42/90
1st number: 42/90, 2nd number: 2 0/24
42/90 - 48/24 is -23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
42/90 = 42 × 4/90 × 4 = 168/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
48/24 = 48 × 15/24 × 15 = 720/360 - Subtract the two like fractions:
168/360 - 720/360 = 168 - 720/360 = -552/360 - After reducing the fraction, the answer is -23/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90-48/24 42/90-96/24 42/90-48/72