Add 81/54 and 6/21
1st number: 1 27/54, 2nd number: 6/21
81/54 + 6/21 is 25/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 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 21 × 18 = 378,
6/21 = 6 × 18/21 × 18 = 108/378 - Add the two like fractions:
567/378 + 108/378 = 567 + 108/378 = 675/378 - 675/378 simplified gives 25/14
- So, 81/54 + 6/21 = 25/14
In mixed form: 111/14
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