Add 64/81 and 81/40
1st number: 64/81, 2nd number: 2 1/40
64/81 + 81/40 is 9121/3240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
64/81 = 64 × 40/81 × 40 = 2560/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
81/40 = 81 × 81/40 × 81 = 6561/3240 - Add the two like fractions:
2560/3240 + 6561/3240 = 2560 + 6561/3240 = 9121/3240 - So, 64/81 + 81/40 = 9121/3240
In mixed form: 22641/3240
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Related: 64/81+81/80