Add 25/42 and 84/4
1st number: 25/42, 2nd number: 21 0/4
25/42 + 84/4 is 907/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
25/42 = 25 × 2/42 × 2 = 50/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
84/4 = 84 × 21/4 × 21 = 1764/84 - Add the two like fractions:
50/84 + 1764/84 = 50 + 1764/84 = 1814/84 - 1814/84 simplified gives 907/42
- So, 25/42 + 84/4 = 907/42
In mixed form: 2125/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+84/4 25/84+84/4 25/42+84/8 75/42+84/4 25/42+84/12 25/42+84/20 25/42+84/28