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How do you take out HCF of 3 and 15?
To find the HCF you first need to break the numbers down into their prime factors. In this case you'd get: 3 = 3 15 = 3x5 The next step is to identify any common prime factors. In this case, the only common prime factor is 3. Therefore the HCF of 3 and 15 is 3.
How long will it take for an undersea sonar pulse to travel 3 km?
3 hours 15 minutes
What is the fraction 9 over 15 minus 1 over 5?
To solve 9/15 - 1/5 we need to get the denominators the same. We can see that 15 can be made from both denominators. 9/15 - 1/5 (3) 9/15 - 3/15 = 6/15 which simplifies to 2/5
How many thirds make five?
There are 15 of them because 15/3 = 5
What is the LCM of 15 30?
To find the Least Common Multiple (LCM) of 15 and 30, we first need to find the prime factorization of each number. The prime factorization of 15 is 3 x 5, and the prime factorization of 30 is 2 x 3 x 5. To find the LCM, we take the highest power of each prime factor that appears in either number, which gives us 2 x 3 x 5 = 30. Therefore, the LCM of 15 and 30 is 30.
