Add 18/27 and 21/15
1st number: 18/27, 2nd number: 1 6/15
18/27 + 21/15 is 31/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 15 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
18/27 = 18 × 5/27 × 5 = 90/135 - Likewise, for the 2nd fraction, since 15 × 9 = 135,
21/15 = 21 × 9/15 × 9 = 189/135 - Add the two like fractions:
90/135 + 189/135 = 90 + 189/135 = 279/135 - 279/135 simplified gives 31/15
- So, 18/27 + 21/15 = 31/15
In mixed form: 21/15
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