Add 20/28 and 9/27
20/28 + 9/27 is 22/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
20/28 = 20 × 27/28 × 27 = 540/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
9/27 = 9 × 28/27 × 28 = 252/756 - Add the two like fractions:
540/756 + 252/756 = 540 + 252/756 = 792/756 - 792/756 simplified gives 22/21
- So, 20/28 + 9/27 = 22/21
In mixed form: 11/21
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