Add 21/80 and 20/27
21/80 + 20/27 is 2167/2160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
21/80 = 21 × 27/80 × 27 = 567/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
20/27 = 20 × 80/27 × 80 = 1600/2160 - Add the two like fractions:
567/2160 + 1600/2160 = 567 + 1600/2160 = 2167/2160 - So, 21/80 + 20/27 = 2167/2160
In mixed form: 17/2160
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