Add 28/8 and 12/16
1st number: 3 4/8, 2nd number: 12/16
28/8 + 12/16 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 8 × 2 = 16,
28/8 = 28 × 2/8 × 2 = 56/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
12/16 = 12 × 1/16 × 1 = 12/16 - Add the two like fractions:
56/16 + 12/16 = 56 + 12/16 = 68/16 - 68/16 simplified gives 17/4
- So, 28/8 + 12/16 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+12/16 28/8+24/16 28/16+12/16 28/8+12/32 84/8+12/16 28/8+36/16 28/24+12/16 28/8+12/48 28/8+60/16 28/40+12/16 28/8+12/80 28/8+84/16 28/56+12/16