Add 16/81 and 8/20
16/81 + 8/20 is 242/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 20 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
16/81 = 16 × 20/81 × 20 = 320/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
8/20 = 8 × 81/20 × 81 = 648/1620 - Add the two like fractions:
320/1620 + 648/1620 = 320 + 648/1620 = 968/1620 - 968/1620 simplified gives 242/405
- So, 16/81 + 8/20 = 242/405
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