Add 21/24 and 15/27
21/24 + 15/27 is 103/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 24 × 9 = 216,
21/24 = 21 × 9/24 × 9 = 189/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
15/27 = 15 × 8/27 × 8 = 120/216 - Add the two like fractions:
189/216 + 120/216 = 189 + 120/216 = 309/216 - 309/216 simplified gives 103/72
- So, 21/24 + 15/27 = 103/72
In mixed form: 131/72
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