Subtract 42/25 from 20/4
1st number: 5 0/4, 2nd number: 1 17/25
20/4 - 42/25 is 83/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
20/4 = 20 × 25/4 × 25 = 500/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
42/25 = 42 × 4/25 × 4 = 168/100 - Subtract the two like fractions:
500/100 - 168/100 = 500 - 168/100 = 332/100 - After reducing the fraction, the answer is 83/25
- In mixed form: 38/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4-42/25 20/4-84/25 20/8-42/25 20/4-42/50 60/4-42/25 20/12-42/25 20/4-42/75 20/28-42/25