Add 84/18 and 90/12
1st number: 4 12/18, 2nd number: 7 6/12
84/18 + 90/12 is 73/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
84/18 = 84 × 2/18 × 2 = 168/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
90/12 = 90 × 3/12 × 3 = 270/36 - Add the two like fractions:
168/36 + 270/36 = 168 + 270/36 = 438/36 - 438/36 simplified gives 73/6
- So, 84/18 + 90/12 = 73/6
In mixed form: 121/6
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