Subtract 42/50 from 3/6
3/6 - 42/50 is -17/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 6 × 25 = 150,
3/6 = 3 × 25/6 × 25 = 75/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
42/50 = 42 × 3/50 × 3 = 126/150 - Subtract the two like fractions:
75/150 - 126/150 = 75 - 126/150 = -51/150 - After reducing the fraction, the answer is -17/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6-84/50 3/12-42/50 9/6-42/50 3/18-42/50 15/6-42/50 3/30-42/50 21/6-42/50 3/42-42/50