Add 28/84 and 25/8
1st number: 28/84, 2nd number: 3 1/8
28/84 + 25/8 is 83/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
28/84 = 28 × 2/84 × 2 = 56/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
25/8 = 25 × 21/8 × 21 = 525/168 - Add the two like fractions:
56/168 + 525/168 = 56 + 525/168 = 581/168 - 581/168 simplified gives 83/24
- So, 28/84 + 25/8 = 83/24
In mixed form: 311/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84+25/8 28/84+50/8 28/84+25/16 28/84+75/8 28/84+25/24 28/84+25/40 28/84+25/56