round off the sum 4509+5906 pls explain by step
Answers
Answer:
Consider the numbers 12 and 15:
The factors of 12 are : 1, 2, 3, 4, 6, 12.
The factors of 15 are : 1, 3, 5, 15.
1 and 3 are the only common factors (numbers which are factors of both 12 and 15).
Therefore, the highest common factor of 12 and 15 is 3.
Example Questions
Work out the answers to these questions and click the buttons marked Click on this button below to see the correct answer to see whether you are correct.
(a) Find the highest common factor of 20 and 30 by following the steps below:
What are the factors of 20?
What are the factors of 30?
What is the highest common factor of 20 and 30?
(b) Find the highest common factor of 14 and 12 by following the steps below:
What are the factors of 14?
What are the factors of 12?
What is the highest common factor of 14 and 12?
The lowest common multiple (LCM) of two whole numbers
is the smallest whole number which is a multiple of both.
LCM Example
Consider the numbers 12 and 15 again:
The multiples of 12 are : 12, 24, 36, 48, 60, 72, 84, ....
Step-by-step explanation: