Add 20/27 and 27/28
20/27 + 27/28 is 1289/756.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
20/27 = 20 × 28/27 × 28 = 560/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
27/28 = 27 × 27/28 × 27 = 729/756 - Add the two like fractions:
560/756 + 729/756 = 560 + 729/756 = 1289/756 - So, 20/27 + 27/28 = 1289/756
In mixed form: 1533/756
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