Add 16/81 and 8/40
16/81 + 8/40 is 161/405.
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,
8/40 = 8 × 81/40 × 81 = 648/3240 - Add the two like fractions:
640/3240 + 648/3240 = 640 + 648/3240 = 1288/3240 - 1288/3240 simplified gives 161/405
- So, 16/81 + 8/40 = 161/405
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