Add 12/49 and 63/81
12/49 + 63/81 is 451/441.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 81 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 49 × 81 = 3969,
12/49 = 12 × 81/49 × 81 = 972/3969 - Likewise, for the 2nd fraction, since 81 × 49 = 3969,
63/81 = 63 × 49/81 × 49 = 3087/3969 - Add the two like fractions:
972/3969 + 3087/3969 = 972 + 3087/3969 = 4059/3969 - 4059/3969 simplified gives 451/441
- So, 12/49 + 63/81 = 451/441
In mixed form: 110/441
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