Subtract 3/6 from 42/20
1st number: 2 2/20, 2nd number: 3/6
42/20 - 3/6 is 8/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 6 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Likewise, for the 2nd fraction, since 6 × 10 = 60,
3/6 = 3 × 10/6 × 10 = 30/60 - Subtract the two like fractions:
126/60 - 30/60 = 126 - 30/60 = 96/60 - After reducing the fraction, the answer is 8/5
- In mixed form: 13/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20-3/6 42/40-3/6 42/20-3/12 42/20-9/6 42/60-3/6 42/20-3/18 42/20-15/6 42/20-3/30 42/20-21/6 42/20-3/42