Add 20/27 and 10/28
20/27 + 10/28 is 415/378.
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,
10/28 = 10 × 27/28 × 27 = 270/756 - Add the two like fractions:
560/756 + 270/756 = 560 + 270/756 = 830/756 - 830/756 simplified gives 415/378
- So, 20/27 + 10/28 = 415/378
In mixed form: 137/378
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