Add 42/12 and 7/81
1st number: 3 6/12, 2nd number: 7/81
42/12 + 7/81 is 581/162.
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,
42/12 = 42 × 27/12 × 27 = 1134/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
7/81 = 7 × 4/81 × 4 = 28/324 - Add the two like fractions:
1134/324 + 28/324 = 1134 + 28/324 = 1162/324 - 1162/324 simplified gives 581/162
- So, 42/12 + 7/81 = 581/162
In mixed form: 395/162
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