Add 20/81 and 28/60
20/81 + 28/60 is 289/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 60 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
20/81 = 20 × 20/81 × 20 = 400/1620 - Likewise, for the 2nd fraction, since 60 × 27 = 1620,
28/60 = 28 × 27/60 × 27 = 756/1620 - Add the two like fractions:
400/1620 + 756/1620 = 400 + 756/1620 = 1156/1620 - 1156/1620 simplified gives 289/405
- So, 20/81 + 28/60 = 289/405
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