Add 42/27 and 12/28
1st number: 1 15/27, 2nd number: 12/28
42/27 + 12/28 is 125/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
42/27 = 42 × 28/27 × 28 = 1176/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
12/28 = 12 × 27/28 × 27 = 324/756 - Add the two like fractions:
1176/756 + 324/756 = 1176 + 324/756 = 1500/756 - 1500/756 simplified gives 125/63
- So, 42/27 + 12/28 = 125/63
In mixed form: 162/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27+12/28 42/27+24/28 42/54+12/28 42/27+12/56 42/27+36/28 42/81+12/28 42/27+12/84 42/27+60/28 42/27+84/28