Add 21/27 and 18/8
1st number: 21/27, 2nd number: 2 2/8
21/27 + 18/8 is 109/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 8 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 8 × 27 = 216,
18/8 = 18 × 27/8 × 27 = 486/216 - Add the two like fractions:
168/216 + 486/216 = 168 + 486/216 = 654/216 - 654/216 simplified gives 109/36
- So, 21/27 + 18/8 = 109/36
In mixed form: 31/36
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