Plz help with this I don’t know what to do
2 answers:
Answers:
- Row One: 9, 15
- Row Two: 8, 16, 20
Input the numbers only in each box. So that means you won't type in a comma.
The least common denominator is <u>12</u>
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Explanation:
Your teacher wants you to list the multiples of each denominator.
- The multiples of 3 are: 3, 6, 9, 12, 15
- The multiples of 4 are: 4, 8, 12, 16, 20
The values in bold are what will go in the boxes in those first two rows.
The least common denominator is 12 because it is the smallest thing found in common in the two lists above. In other words, 12 is the LCM (least common multiple) of 3 and 4. Note how 3*4 = 12. This works because 3 and 4 do not have any common factors between them other than 1.
The LCD (least common denominator) is the LCM of the denominators. The LCD is useful for when you want to add or subtract fractions. The denominators must be the same for you be able to add or subtract them.
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