Add 28/54 and 21/84
28/54 + 21/84 is 83/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 54 × 14 = 756,
28/54 = 28 × 14/54 × 14 = 392/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
21/84 = 21 × 9/84 × 9 = 189/756 - Add the two like fractions:
392/756 + 189/756 = 392 + 189/756 = 581/756 - 581/756 simplified gives 83/108
- So, 28/54 + 21/84 = 83/108
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