Add 84/3 and 90/12
1st number: 28 0/3, 2nd number: 7 6/12
84/3 + 90/12 is 71/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
84/3 = 84 × 4/3 × 4 = 336/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
90/12 = 90 × 1/12 × 1 = 90/12 - Add the two like fractions:
336/12 + 90/12 = 336 + 90/12 = 426/12 - 426/12 simplified gives 71/2
- So, 84/3 + 90/12 = 71/2
In mixed form: 351/2
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