Add 4/81 and 42/12
1st number: 4/81, 2nd number: 3 6/12
4/81 + 42/12 is 575/162.
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,
4/81 = 4 × 4/81 × 4 = 16/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
42/12 = 42 × 27/12 × 27 = 1134/324 - Add the two like fractions:
16/324 + 1134/324 = 16 + 1134/324 = 1150/324 - 1150/324 simplified gives 575/162
- So, 4/81 + 42/12 = 575/162
In mixed form: 389/162
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