Add 18/27 and 21/30
18/27 + 21/30 is 41/30.
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,
21/30 = 21 × 9/30 × 9 = 189/270 - Add the two like fractions:
180/270 + 189/270 = 180 + 189/270 = 369/270 - 369/270 simplified gives 41/30
- So, 18/27 + 21/30 = 41/30
In mixed form: 111/30
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