Add 5/81 and 56/20
1st number: 5/81, 2nd number: 2 16/20
5/81 + 56/20 is 1159/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 20 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
5/81 = 5 × 20/81 × 20 = 100/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
56/20 = 56 × 81/20 × 81 = 4536/1620 - Add the two like fractions:
100/1620 + 4536/1620 = 100 + 4536/1620 = 4636/1620 - 4636/1620 simplified gives 1159/405
- So, 5/81 + 56/20 = 1159/405
In mixed form: 2349/405
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