Add 6/20 and 25/81
6/20 + 25/81 is 493/810.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 20 × 81 = 1620,
6/20 = 6 × 81/20 × 81 = 486/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
25/81 = 25 × 20/81 × 20 = 500/1620 - Add the two like fractions:
486/1620 + 500/1620 = 486 + 500/1620 = 986/1620 - 986/1620 simplified gives 493/810
- So, 6/20 + 25/81 = 493/810
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