Subtract 42/32 from 50/90
1st number: 50/90, 2nd number: 1 10/32
50/90 - 42/32 is -109/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 32 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 90 × 16 = 1440,
50/90 = 50 × 16/90 × 16 = 800/1440 - Likewise, for the 2nd fraction, since 32 × 45 = 1440,
42/32 = 42 × 45/32 × 45 = 1890/1440 - Subtract the two like fractions:
800/1440 - 1890/1440 = 800 - 1890/1440 = -1090/1440 - After reducing the fraction, the answer is -109/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90-84/32 50/90-42/64 50/90-42/96