Add 21/16 and 3/81
1st number: 1 5/16, 2nd number: 3/81
21/16 + 3/81 is 583/432.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
21/16 = 21 × 81/16 × 81 = 1701/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
3/81 = 3 × 16/81 × 16 = 48/1296 - Add the two like fractions:
1701/1296 + 48/1296 = 1701 + 48/1296 = 1749/1296 - 1749/1296 simplified gives 583/432
- So, 21/16 + 3/81 = 583/432
In mixed form: 1151/432
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