Add 63/81 and 20/84
63/81 + 20/84 is 64/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 84 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
63/81 = 63 × 28/81 × 28 = 1764/2268 - Likewise, for the 2nd fraction, since 84 × 27 = 2268,
20/84 = 20 × 27/84 × 27 = 540/2268 - Add the two like fractions:
1764/2268 + 540/2268 = 1764 + 540/2268 = 2304/2268 - 2304/2268 simplified gives 64/63
- So, 63/81 + 20/84 = 64/63
In mixed form: 11/63
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