Add 18/27 and 20/30
18/27 + 20/30 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
18/27 = 18 × 10/27 × 10 = 180/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
20/30 = 20 × 9/30 × 9 = 180/270 - Add the two like fractions:
180/270 + 180/270 = 180 + 180/270 = 360/270 - 360/270 simplified gives 4/3
- So, 18/27 + 20/30 = 4/3
In mixed form: 11/3
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