Subtract 42/3 from 3/30
1st number: 3/30, 2nd number: 14 0/3
3/30 - 42/3 is -139/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
3/30 = 3 × 1/30 × 1 = 3/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
42/3 = 42 × 10/3 × 10 = 420/30 - Subtract the two like fractions:
3/30 - 420/30 = 3 - 420/30 = -417/30 - After reducing the fraction, the answer is -139/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30-42/3 3/30-84/3 3/60-42/3 3/30-42/6 9/30-42/3 3/90-42/3 3/30-42/9 15/30-42/3 3/30-42/15 21/30-42/3 3/30-42/21