Subtract 5/30 from 42/2
1st number: 21 0/2, 2nd number: 5/30
42/2 - 5/30 is 125/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
42/2 = 42 × 15/2 × 15 = 630/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
5/30 = 5 × 1/30 × 1 = 5/30 - Subtract the two like fractions:
630/30 - 5/30 = 630 - 5/30 = 625/30 - After reducing the fraction, the answer is 125/6
- In mixed form: 205/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-5/30 42/2-10/30 42/4-5/30 42/2-5/60 42/2-15/30 42/6-5/30 42/2-5/90 42/2-25/30 42/10-5/30 42/2-35/30 42/14-5/30