Subtract 2/50 from 42/80
42/80 - 2/50 is 97/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
42/80 = 42 × 5/80 × 5 = 210/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
2/50 = 2 × 8/50 × 8 = 16/400 - Subtract the two like fractions:
210/400 - 16/400 = 210 - 16/400 = 194/400 - After reducing the fraction, the answer is 97/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80-2/50 42/80-4/50 42/80-6/50 42/80-10/50 42/80-14/50