Add 16/81 and 5/40
16/81 + 5/40 is 209/648.
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,
16/81 = 16 × 40/81 × 40 = 640/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
5/40 = 5 × 81/40 × 81 = 405/3240 - Add the two like fractions:
640/3240 + 405/3240 = 640 + 405/3240 = 1045/3240 - 1045/3240 simplified gives 209/648
- So, 16/81 + 5/40 = 209/648
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