Add 28/35 and 54/12
1st number: 28/35, 2nd number: 4 6/12
28/35 + 54/12 is 53/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
28/35 = 28 × 12/35 × 12 = 336/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
54/12 = 54 × 35/12 × 35 = 1890/420 - Add the two like fractions:
336/420 + 1890/420 = 336 + 1890/420 = 2226/420 - 2226/420 simplified gives 53/10
- So, 28/35 + 54/12 = 53/10
In mixed form: 53/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35+54/12 28/70+54/12 28/35+54/24 84/35+54/12 28/35+54/36 28/35+54/60 28/35+54/84