Add 30/12 and 90/18
1st number: 2 6/12, 2nd number: 5 0/18
30/12 + 90/18 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
30/12 = 30 × 3/12 × 3 = 90/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
90/18 = 90 × 2/18 × 2 = 180/36 - Add the two like fractions:
90/36 + 180/36 = 90 + 180/36 = 270/36 - 270/36 simplified gives 15/2
- So, 30/12 + 90/18 = 15/2
In mixed form: 71/2
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