Add 28/12 and 18/90
1st number: 2 4/12, 2nd number: 18/90
28/12 + 18/90 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
28/12 = 28 × 15/12 × 15 = 420/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
18/90 = 18 × 2/90 × 2 = 36/180 - Add the two like fractions:
420/180 + 36/180 = 420 + 36/180 = 456/180 - 456/180 simplified gives 38/15
- So, 28/12 + 18/90 = 38/15
In mixed form: 28/15
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