Subtract 2/30 from 42/2
1st number: 21 0/2, 2nd number: 2/30
42/2 - 2/30 is 314/15.
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,
2/30 = 2 × 1/30 × 1 = 2/30 - Subtract the two like fractions:
630/30 - 2/30 = 630 - 2/30 = 628/30 - After reducing the fraction, the answer is 314/15
- In mixed form: 2014/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-2/30 42/2-4/30 42/4-2/30 42/2-2/60 42/2-6/30 42/6-2/30 42/2-2/90 42/2-10/30 42/10-2/30 42/2-14/30 42/14-2/30