Add 15/20 and 12/27
15/20 + 12/27 is 43/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
15/20 = 15 × 27/20 × 27 = 405/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
12/27 = 12 × 20/27 × 20 = 240/540 - Add the two like fractions:
405/540 + 240/540 = 405 + 240/540 = 645/540 - 645/540 simplified gives 43/36
- So, 15/20 + 12/27 = 43/36
In mixed form: 17/36
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