Add 81/84 and 90/28
1st number: 81/84, 2nd number: 3 6/28
81/84 + 90/28 is 117/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
81/84 = 81 × 1/84 × 1 = 81/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
90/28 = 90 × 3/28 × 3 = 270/84 - Add the two like fractions:
81/84 + 270/84 = 81 + 270/84 = 351/84 - 351/84 simplified gives 117/28
- So, 81/84 + 90/28 = 117/28
In mixed form: 45/28
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