Add 21/27 and 9/24
21/27 + 9/24 is 83/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 24 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
21/27 = 21 × 8/27 × 8 = 168/216 - Likewise, for the 2nd fraction, since 24 × 9 = 216,
9/24 = 9 × 9/24 × 9 = 81/216 - Add the two like fractions:
168/216 + 81/216 = 168 + 81/216 = 249/216 - 249/216 simplified gives 83/72
- So, 21/27 + 9/24 = 83/72
In mixed form: 111/72
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