Add 54/3 and 28/21
1st number: 18 0/3, 2nd number: 1 7/21
54/3 + 28/21 is 58/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
54/3 = 54 × 7/3 × 7 = 378/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
28/21 = 28 × 1/21 × 1 = 28/21 - Add the two like fractions:
378/21 + 28/21 = 378 + 28/21 = 406/21 - 406/21 simplified gives 58/3
- So, 54/3 + 28/21 = 58/3
In mixed form: 191/3
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