Add 15/18 and 30/56
15/18 + 30/56 is 115/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
15/18 = 15 × 28/18 × 28 = 420/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
30/56 = 30 × 9/56 × 9 = 270/504 - Add the two like fractions:
420/504 + 270/504 = 420 + 270/504 = 690/504 - 690/504 simplified gives 115/84
- So, 15/18 + 30/56 = 115/84
In mixed form: 131/84
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