Add 28/56 and 9/81
28/56 + 9/81 is 11/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
28/56 = 28 × 81/56 × 81 = 2268/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
9/81 = 9 × 56/81 × 56 = 504/4536 - Add the two like fractions:
2268/4536 + 504/4536 = 2268 + 504/4536 = 2772/4536 - 2772/4536 simplified gives 11/18
- So, 28/56 + 9/81 = 11/18
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