Add 30/56 and 20/18
1st number: 30/56, 2nd number: 1 2/18
30/56 + 20/18 is 415/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
30/56 = 30 × 9/56 × 9 = 270/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
20/18 = 20 × 28/18 × 28 = 560/504 - Add the two like fractions:
270/504 + 560/504 = 270 + 560/504 = 830/504 - 830/504 simplified gives 415/252
- So, 30/56 + 20/18 = 415/252
In mixed form: 1163/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/56+20/18 30/56+40/18 30/56+20/36 90/56+20/18 30/56+60/18 30/56+20/54 30/56+20/90