Add 35/81 and 72/20
1st number: 35/81, 2nd number: 3 12/20
35/81 + 72/20 is 1633/405.
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,
35/81 = 35 × 20/81 × 20 = 700/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
72/20 = 72 × 81/20 × 81 = 5832/1620 - Add the two like fractions:
700/1620 + 5832/1620 = 700 + 5832/1620 = 6532/1620 - 6532/1620 simplified gives 1633/405
- So, 35/81 + 72/20 = 1633/405
In mixed form: 413/405
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