Add 42/4 and 84/28
1st number: 10 2/4, 2nd number: 3 0/28
42/4 + 84/28 is 27/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
42/4 = 42 × 7/4 × 7 = 294/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
84/28 = 84 × 1/28 × 1 = 84/28 - Add the two like fractions:
294/28 + 84/28 = 294 + 84/28 = 378/28 - 378/28 simplified gives 27/2
- So, 42/4 + 84/28 = 27/2
In mixed form: 131/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+84/28 42/8+84/28 42/4+84/56 42/12+84/28 42/20+84/28 42/28+84/28