Add 90/12 and 75/81
1st number: 7 6/12, 2nd number: 75/81
90/12 + 75/81 is 455/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
90/12 = 90 × 27/12 × 27 = 2430/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
75/81 = 75 × 4/81 × 4 = 300/324 - Add the two like fractions:
2430/324 + 300/324 = 2430 + 300/324 = 2730/324 - 2730/324 simplified gives 455/54
- So, 90/12 + 75/81 = 455/54
In mixed form: 823/54
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