Add 20/18 and 90/12
1st number: 1 2/18, 2nd number: 7 6/12
20/18 + 90/12 is 155/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
20/18 = 20 × 2/18 × 2 = 40/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
90/12 = 90 × 3/12 × 3 = 270/36 - Add the two like fractions:
40/36 + 270/36 = 40 + 270/36 = 310/36 - 310/36 simplified gives 155/18
- So, 20/18 + 90/12 = 155/18
In mixed form: 811/18
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