Add 54/21 and 18/54
1st number: 2 12/21, 2nd number: 18/54
54/21 + 18/54 is 61/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
54/21 = 54 × 18/21 × 18 = 972/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
18/54 = 18 × 7/54 × 7 = 126/378 - Add the two like fractions:
972/378 + 126/378 = 972 + 126/378 = 1098/378 - 1098/378 simplified gives 61/21
- So, 54/21 + 18/54 = 61/21
In mixed form: 219/21
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