Add 81/54 and 84/7
1st number: 1 27/54, 2nd number: 12 0/7
81/54 + 84/7 is 27/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
81/54 = 81 × 7/54 × 7 = 567/378 - Likewise, for the 2nd fraction, since 7 × 54 = 378,
84/7 = 84 × 54/7 × 54 = 4536/378 - Add the two like fractions:
567/378 + 4536/378 = 567 + 4536/378 = 5103/378 - 5103/378 simplified gives 27/2
- So, 81/54 + 84/7 = 27/2
In mixed form: 131/2
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