Add 21/14 and 18/54
1st number: 1 7/14, 2nd number: 18/54
21/14 + 18/54 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 14 × 27 = 378,
21/14 = 21 × 27/14 × 27 = 567/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
18/54 = 18 × 7/54 × 7 = 126/378 - Add the two like fractions:
567/378 + 126/378 = 567 + 126/378 = 693/378 - 693/378 simplified gives 11/6
- So, 21/14 + 18/54 = 11/6
In mixed form: 15/6
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