Add 7/81 and 15/49
7/81 + 15/49 is 1558/3969.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 49 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 81 × 49 = 3969,
7/81 = 7 × 49/81 × 49 = 343/3969 - Likewise, for the 2nd fraction, since 49 × 81 = 3969,
15/49 = 15 × 81/49 × 81 = 1215/3969 - Add the two like fractions:
343/3969 + 1215/3969 = 343 + 1215/3969 = 1558/3969 - So, 7/81 + 15/49 = 1558/3969
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