Subtract 7/12 from 42/50
42/50 - 7/12 is 77/300.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 50 × 6 = 300,
42/50 = 42 × 6/50 × 6 = 252/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
7/12 = 7 × 25/12 × 25 = 175/300 - Subtract the two like fractions:
252/300 - 175/300 = 252 - 175/300 = 77/300
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50-7/12 42/50-14/12 42/50-7/24 42/50-21/12 42/50-7/36 42/50-35/12 42/50-7/60 42/50-49/12 42/50-7/84