Subtract 42/40 from 2/50
1st number: 2/50, 2nd number: 1 2/40
2/50 - 42/40 is -101/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
2/50 = 2 × 4/50 × 4 = 8/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
42/40 = 42 × 5/40 × 5 = 210/200 - Subtract the two like fractions:
8/200 - 210/200 = 8 - 210/200 = -202/200 - After reducing the fraction, the answer is -101/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/50-42/40 2/50-84/40 2/50-42/80 6/50-42/40 10/50-42/40 14/50-42/40