Add 4/84 and 25/21
1st number: 4/84, 2nd number: 1 4/21
4/84 + 25/21 is 26/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
4/84 = 4 × 1/84 × 1 = 4/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
25/21 = 25 × 4/21 × 4 = 100/84 - Add the two like fractions:
4/84 + 100/84 = 4 + 100/84 = 104/84 - 104/84 simplified gives 26/21
- So, 4/84 + 25/21 = 26/21
In mixed form: 15/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+25/21 4/84+50/21 4/84+25/42 12/84+25/21 4/84+75/21 4/84+25/63 20/84+25/21 28/84+25/21