Add 81/7 and 45/54
1st number: 11 4/7, 2nd number: 45/54
81/7 + 45/54 is 521/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
81/7 = 81 × 54/7 × 54 = 4374/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
45/54 = 45 × 7/54 × 7 = 315/378 - Add the two like fractions:
4374/378 + 315/378 = 4374 + 315/378 = 4689/378 - 4689/378 simplified gives 521/42
- So, 81/7 + 45/54 = 521/42
In mixed form: 1217/42
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