Add 72/81 and 63/12
1st number: 72/81, 2nd number: 5 3/12
72/81 + 63/12 is 221/36.
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,
63/12 = 63 × 27/12 × 27 = 1701/324 - Add the two like fractions:
288/324 + 1701/324 = 288 + 1701/324 = 1989/324 - 1989/324 simplified gives 221/36
- So, 72/81 + 63/12 = 221/36
In mixed form: 65/36
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