Add 20/27 and 21/90
20/27 + 21/90 is 263/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
20/27 = 20 × 10/27 × 10 = 200/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
21/90 = 21 × 3/90 × 3 = 63/270 - Add the two like fractions:
200/270 + 63/270 = 200 + 63/270 = 263/270 - So, 20/27 + 21/90 = 263/270
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