Add 30/28 and 42/36
1st number: 1 2/28, 2nd number: 1 6/36
30/28 + 42/36 is 47/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
30/28 = 30 × 9/28 × 9 = 270/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
42/36 = 42 × 7/36 × 7 = 294/252 - Add the two like fractions:
270/252 + 294/252 = 270 + 294/252 = 564/252 - 564/252 simplified gives 47/21
- So, 30/28 + 42/36 = 47/21
In mixed form: 25/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28+42/36 30/28+84/36 30/56+42/36 30/28+42/72 90/28+42/36 30/84+42/36