Subtract 42/6 from 20/25
1st number: 20/25, 2nd number: 7 0/6
20/25 - 42/6 is -31/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 6 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
20/25 = 20 × 6/25 × 6 = 120/150 - Likewise, for the 2nd fraction, since 6 × 25 = 150,
42/6 = 42 × 25/6 × 25 = 1050/150 - Subtract the two like fractions:
120/150 - 1050/150 = 120 - 1050/150 = -930/150 - After reducing the fraction, the answer is -31/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25-42/6 20/25-84/6 20/50-42/6 20/25-42/12 60/25-42/6 20/75-42/6 20/25-42/18 20/25-42/30