Solutions by everydaycalculation.com

515 + 3554 is 5354.

- Find the least common denominator or LCM of the two denominators:

LCM of 15 and 54 is**270**

Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,

515 = 5 × 1815 × 18 = 90270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,

3554 = 35 × 554 × 5 = 175270 - Add the two like fractions:

90270 + 175270 = 90 + 175270 = 265270 - 265/270 simplified gives 5354
- So, 5/15 + 35/54 = 53/54

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