Add 20/81 and 56/45
1st number: 20/81, 2nd number: 1 11/45
20/81 + 56/45 is 604/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 45 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
20/81 = 20 × 5/81 × 5 = 100/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
56/45 = 56 × 9/45 × 9 = 504/405 - Add the two like fractions:
100/405 + 504/405 = 100 + 504/405 = 604/405 - So, 20/81 + 56/45 = 604/405
In mixed form: 1199/405
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