Add 6/20 and 63/81
6/20 + 63/81 is 97/90.
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,
63/81 = 63 × 20/81 × 20 = 1260/1620 - Add the two like fractions:
486/1620 + 1260/1620 = 486 + 1260/1620 = 1746/1620 - 1746/1620 simplified gives 97/90
- So, 6/20 + 63/81 = 97/90
In mixed form: 17/90
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