Add 7/24 and 21/27, Solve 7/24 + 21/27 as a fraction

Add 7/24 and 21/27

7/24 + 21/27 is 77/72.

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,
7/24 = 7 × 9/24 × 9 = 63/216
Likewise, for the 2nd fraction, since 27 × 8 = 216,
21/27 = 21 × 8/27 × 8 = 168/216
Add the two like fractions:
63/216 + 168/216 = 63 + 168/216 = 231/216
231/216 simplified gives 77/72
So, 7/24 + 21/27 = 77/72
In mixed form: 15/72

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