Add 12/18 and 84/45
1st number: 12/18, 2nd number: 1 39/45
12/18 + 84/45 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
12/18 = 12 × 5/18 × 5 = 60/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
84/45 = 84 × 2/45 × 2 = 168/90 - Add the two like fractions:
60/90 + 168/90 = 60 + 168/90 = 228/90 - 228/90 simplified gives 38/15
- So, 12/18 + 84/45 = 38/15
In mixed form: 28/15
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