Subtract 60/48 from 42/90
1st number: 42/90, 2nd number: 1 12/48
42/90 - 60/48 is -47/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
42/90 = 42 × 8/90 × 8 = 336/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
60/48 = 60 × 15/48 × 15 = 900/720 - Subtract the two like fractions:
336/720 - 900/720 = 336 - 900/720 = -564/720 - After reducing the fraction, the answer is -47/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90-60/48 42/90-60/96