Add 28/8 and 5/15
1st number: 3 4/8, 2nd number: 5/15
28/8 + 5/15 is 23/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
28/8 = 28 × 15/8 × 15 = 420/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
5/15 = 5 × 8/15 × 8 = 40/120 - Add the two like fractions:
420/120 + 40/120 = 420 + 40/120 = 460/120 - 460/120 simplified gives 23/6
- So, 28/8 + 5/15 = 23/6
In mixed form: 35/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+5/15 28/8+10/15 28/16+5/15 28/8+5/30 84/8+5/15 28/24+5/15 28/8+5/45 28/8+25/15 28/40+5/15 28/8+5/75 28/8+35/15 28/56+5/15