Add 21/54 and 63/24, Solve 21/54 + 2 15/24 as a fraction

Add 21/54 and 63/24

1^st number: 21/54, 2^nd number: 2 15/24

21/54 + 63/24 is 217/72.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 24 is 216

Next, find the equivalent fraction of both fractional numbers with denominator 216
For the 1st fraction, since 54 × 4 = 216,
21/54 = 21 × 4/54 × 4 = 84/216
Likewise, for the 2nd fraction, since 24 × 9 = 216,
63/24 = 63 × 9/24 × 9 = 567/216
Add the two like fractions:
84/216 + 567/216 = 84 + 567/216 = 651/216
651/216 simplified gives 217/72
So, 21/54 + 63/24 = 217/72
In mixed form: 31/72

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