Add 28/81 and 5/20
28/81 + 5/20 is 193/324.
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,
28/81 = 28 × 20/81 × 20 = 560/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
5/20 = 5 × 81/20 × 81 = 405/1620 - Add the two like fractions:
560/1620 + 405/1620 = 560 + 405/1620 = 965/1620 - 965/1620 simplified gives 193/324
- So, 28/81 + 5/20 = 193/324
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