Understanding LCM and LCD

What does the term 'least' signify in the context of LCM and LCD?

• The smallest number

• The average number

• The most frequent number

• The largest number

When finding the LCM of two numbers, what is the first step?

• Divide the numbers

• Add the numbers together

• List the multiples of each number

• Subtract the smaller number from the larger

How do you determine the least common multiple from a list of multiples?

• Choose the largest multiple

• Choose the smallest common multiple

• Choose the first multiple

• Choose the last multiple

What is the main difference between finding the LCM and the LCD?

• LCM involves addition, LCD involves subtraction

• LCM is for whole numbers, LCD is for fractions

• LCM is for fractions, LCD is for whole numbers

• LCM involves division, LCD involves multiplication

To convert a fraction to have a new denominator, what must you do to the numerator?

• Subtract the same number

• Divide by the same factor used for the denominator

• Add the same number

• Multiply by the same factor used for the denominator

In the advanced example, what was the least common denominator found for 1/6 and 5/16?

• 80

• 48

• 30

• 96

What is the first step in finding the least common denominator for two fractions?

• List the multiples of each denominator

• Subtract the denominators

• Multiply the numerators

• Add the numerators

What is the least common multiple of 4 and 5?

• 20

• 10

• 15

• 25

What is the least common denominator of 2/7 and 1/5?

• 21

• 35

• 14

• 10

How do you convert 2/7 to an equivalent fraction with a denominator of 35?

• Multiply both numerator and denominator by 7

• Multiply both numerator and denominator by 5

• Multiply both numerator and denominator by 2

• Multiply both numerator and denominator by 3