Subtract 42/20 from 54/50
1st number: 1 4/50, 2nd number: 2 2/20
54/50 - 42/20 is -51/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
54/50 = 54 × 2/50 × 2 = 108/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
42/20 = 42 × 5/20 × 5 = 210/100 - Subtract the two like fractions:
108/100 - 210/100 = 108 - 210/100 = -102/100 - After reducing the fraction, the answer is -51/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/50-84/20 54/50-42/40 54/50-42/60