Subtract 42/4 from 25/20
1st number: 1 5/20, 2nd number: 10 2/4
25/20 - 42/4 is -37/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
25/20 = 25 × 1/20 × 1 = 25/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
42/4 = 42 × 5/4 × 5 = 210/20 - Subtract the two like fractions:
25/20 - 210/20 = 25 - 210/20 = -185/20 - After reducing the fraction, the answer is -37/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20-42/4 25/20-84/4 25/40-42/4 25/20-42/8 75/20-42/4 25/60-42/4 25/20-42/12 25/20-42/20 25/20-42/28