Add 72/81 and 70/12
1st number: 72/81, 2nd number: 5 10/12
72/81 + 70/12 is 121/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
72/81 = 72 × 4/81 × 4 = 288/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
70/12 = 70 × 27/12 × 27 = 1890/324 - Add the two like fractions:
288/324 + 1890/324 = 288 + 1890/324 = 2178/324 - 2178/324 simplified gives 121/18
- So, 72/81 + 70/12 = 121/18
In mixed form: 613/18
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