Subtract 3/6 from 42/30
1st number: 1 12/30, 2nd number: 3/6
42/30 - 3/6 is 9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
42/30 = 42 × 1/30 × 1 = 42/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
3/6 = 3 × 5/6 × 5 = 15/30 - Subtract the two like fractions:
42/30 - 15/30 = 42 - 15/30 = 27/30 - After reducing the fraction, the answer is 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30-3/6 42/60-3/6 42/30-3/12 42/30-9/6 42/90-3/6 42/30-3/18 42/30-15/6 42/30-3/30 42/30-21/6 42/30-3/42