Subtract 12/5 from 42/2
1st number: 21 0/2, 2nd number: 2 2/5
42/2 - 12/5 is 93/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
42/2 = 42 × 5/2 × 5 = 210/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
12/5 = 12 × 2/5 × 2 = 24/10 - Subtract the two like fractions:
210/10 - 24/10 = 210 - 24/10 = 186/10 - After reducing the fraction, the answer is 93/5
- In mixed form: 183/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-12/5 42/2-24/5 42/4-12/5 42/2-12/10 42/2-36/5 42/6-12/5 42/2-12/15 42/2-60/5 42/10-12/5 42/2-12/25 42/2-84/5 42/14-12/5 42/2-12/35