Add 28/42 and 63/81
28/42 + 63/81 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
28/42 = 28 × 27/42 × 27 = 756/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
63/81 = 63 × 14/81 × 14 = 882/1134 - Add the two like fractions:
756/1134 + 882/1134 = 756 + 882/1134 = 1638/1134 - 1638/1134 simplified gives 13/9
- So, 28/42 + 63/81 = 13/9
In mixed form: 14/9
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