Add 15/81 and 4/20
15/81 + 4/20 is 52/135.
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,
15/81 = 15 × 20/81 × 20 = 300/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
4/20 = 4 × 81/20 × 81 = 324/1620 - Add the two like fractions:
300/1620 + 324/1620 = 300 + 324/1620 = 624/1620 - 624/1620 simplified gives 52/135
- So, 15/81 + 4/20 = 52/135
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