Add 28/4 and 12/8
1st number: 7 0/4, 2nd number: 1 4/8
28/4 + 12/8 is 17/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
28/4 = 28 × 2/4 × 2 = 56/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
12/8 = 12 × 1/8 × 1 = 12/8 - Add the two like fractions:
56/8 + 12/8 = 56 + 12/8 = 68/8 - 68/8 simplified gives 17/2
- So, 28/4 + 12/8 = 17/2
In mixed form: 81/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+12/8 28/4+24/8 28/8+12/8 28/4+12/16 84/4+12/8 28/4+36/8 28/12+12/8 28/4+12/24 28/4+60/8 28/20+12/8 28/4+12/40 28/4+84/8 28/4+12/56