Add 30/45 and 7/81
30/45 + 7/81 is 61/81.
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,
30/45 = 30 × 9/45 × 9 = 270/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
7/81 = 7 × 5/81 × 5 = 35/405 - Add the two like fractions:
270/405 + 35/405 = 270 + 35/405 = 305/405 - 305/405 simplified gives 61/81
- So, 30/45 + 7/81 = 61/81
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