Add 27/18 and 90/30
1st number: 1 9/18, 2nd number: 3 0/30
27/18 + 90/30 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
27/18 = 27 × 5/18 × 5 = 135/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
90/30 = 90 × 3/30 × 3 = 270/90 - Add the two like fractions:
135/90 + 270/90 = 135 + 270/90 = 405/90 - 405/90 simplified gives 9/2
- So, 27/18 + 90/30 = 9/2
In mixed form: 41/2
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