Add 15/28 and 20/54
15/28 + 20/54 is 685/756.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
15/28 = 15 × 27/28 × 27 = 405/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
20/54 = 20 × 14/54 × 14 = 280/756 - Add the two like fractions:
405/756 + 280/756 = 405 + 280/756 = 685/756 - So, 15/28 + 20/54 = 685/756
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