Subtract 12/42 from 84/2
1st number: 42 0/2, 2nd number: 12/42
84/2 - 12/42 is 292/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
84/2 = 84 × 21/2 × 21 = 1764/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
12/42 = 12 × 1/42 × 1 = 12/42 - Subtract the two like fractions:
1764/42 - 12/42 = 1764 - 12/42 = 1752/42 - After reducing the fraction, the answer is 292/7
- In mixed form: 415/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-24/42 84/4-12/42 84/2-12/84 84/2-36/42 84/6-12/42 84/2-60/42 84/10-12/42 84/2-84/42 84/14-12/42