Add 42/12 and 25/81
1st number: 3 6/12, 2nd number: 25/81
42/12 + 25/81 is 617/162.
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,
25/81 = 25 × 4/81 × 4 = 100/324 - Add the two like fractions:
1134/324 + 100/324 = 1134 + 100/324 = 1234/324 - 1234/324 simplified gives 617/162
- So, 42/12 + 25/81 = 617/162
In mixed form: 3131/162
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