Add 81/84 and 5/18
81/84 + 5/18 is 313/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
81/84 = 81 × 3/84 × 3 = 243/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
5/18 = 5 × 14/18 × 14 = 70/252 - Add the two like fractions:
243/252 + 70/252 = 243 + 70/252 = 313/252 - So, 81/84 + 5/18 = 313/252
In mixed form: 161/252
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