Add 28/90 and 18/12
1st number: 28/90, 2nd number: 1 6/12
28/90 + 18/12 is 163/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
28/90 = 28 × 2/90 × 2 = 56/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
18/12 = 18 × 15/12 × 15 = 270/180 - Add the two like fractions:
56/180 + 270/180 = 56 + 270/180 = 326/180 - 326/180 simplified gives 163/90
- So, 28/90 + 18/12 = 163/90
In mixed form: 173/90
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