Add 18/81 and 30/40
18/81 + 30/40 is 35/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
18/81 = 18 × 40/81 × 40 = 720/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
30/40 = 30 × 81/40 × 81 = 2430/3240 - Add the two like fractions:
720/3240 + 2430/3240 = 720 + 2430/3240 = 3150/3240 - 3150/3240 simplified gives 35/36
- So, 18/81 + 30/40 = 35/36
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