Subtract 42/25 from 84/20
1st number: 4 4/20, 2nd number: 1 17/25
84/20 - 42/25 is 63/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
84/20 = 84 × 5/20 × 5 = 420/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
42/25 = 42 × 4/25 × 4 = 168/100 - Subtract the two like fractions:
420/100 - 168/100 = 420 - 168/100 = 252/100 - After reducing the fraction, the answer is 63/25
- In mixed form: 213/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20-84/25 84/40-42/25 84/20-42/50 84/60-42/25 84/20-42/75