Add 18/81 and 40/60
18/81 + 40/60 is 8/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 60 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
18/81 = 18 × 20/81 × 20 = 360/1620 - Likewise, for the 2nd fraction, since 60 × 27 = 1620,
40/60 = 40 × 27/60 × 27 = 1080/1620 - Add the two like fractions:
360/1620 + 1080/1620 = 360 + 1080/1620 = 1440/1620 - 1440/1620 simplified gives 8/9
- So, 18/81 + 40/60 = 8/9
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