Add 3/4 and 40/81
3/4 + 40/81 is 403/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
3/4 = 3 × 81/4 × 81 = 243/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
40/81 = 40 × 4/81 × 4 = 160/324 - Add the two like fractions:
243/324 + 160/324 = 243 + 160/324 = 403/324 - So, 3/4 + 40/81 = 403/324
In mixed form: 179/324
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