Add 42/12 and 28/8
1st number: 3 6/12, 2nd number: 3 4/8
42/12 + 28/8 is 7/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
42/12 = 42 × 2/12 × 2 = 84/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
28/8 = 28 × 3/8 × 3 = 84/24 - Add the two like fractions:
84/24 + 84/24 = 84 + 84/24 = 168/24 - 168/24 simplified gives 7/1
- So, 42/12 + 28/8 = 7/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+28/8 42/12+56/8 42/24+28/8 42/12+28/16 42/12+84/8 42/36+28/8 42/12+28/24 42/60+28/8 42/12+28/40 42/84+28/8 42/12+28/56