Question

Find the LCM of 1.05 and 2.1.

• A. 2.1
• B. .6
• C. 4
• D. 1.25

Answer 1

Answer:

A. 2.1

Here's how to find the LCM of 1.05 and 2.1:

1. Convert Decimals to Fractions:

• 1.05 = 105/100 = 21/20

• 2.1 = 21/10

2. Find the LCM of the Numerators:

• The numerators are 21 and 21.

• The LCM of 21 and 21 is 21.

3. Find the HCF (GCD) of the Denominators:

• The denominators are 20 and 10.

• The HCF of 20 and 10 is 10.

4. Apply the Formula for LCM of Fractions:

• LCM of fractions = LCM of numerators / HCF of denominators

• LCM of 21/20 and 21/10 = 21 / 10 = 2.1

Therefore, the LCM of 1.05 and 2.1 is 2.1