Add 75/45 and 12/81
1st number: 1 30/45, 2nd number: 12/81
75/45 + 12/81 is 49/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
75/45 = 75 × 9/45 × 9 = 675/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
12/81 = 12 × 5/81 × 5 = 60/405 - Add the two like fractions:
675/405 + 60/405 = 675 + 60/405 = 735/405 - 735/405 simplified gives 49/27
- So, 75/45 + 12/81 = 49/27
In mixed form: 122/27
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