Add 12/4 and 20/81
1st number: 3 0/4, 2nd number: 20/81
12/4 + 20/81 is 263/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
12/4 = 12 × 81/4 × 81 = 972/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
20/81 = 20 × 4/81 × 4 = 80/324 - Add the two like fractions:
972/324 + 80/324 = 972 + 80/324 = 1052/324 - 1052/324 simplified gives 263/81
- So, 12/4 + 20/81 = 263/81
In mixed form: 320/81
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