4 years ago

HELP !! I NEED SOMEONE TO DO THIS TO ME!!

Mathematics

1 answer:

yKpoI14uk [10]4 years ago

4 0

Answer:

The LCM of 63 and 91 is 819

Explanation:

1) Find the prime number of 63

63 = 3 × 3 × 7

2) Find the prime number of 91

91 = 7 × 13

3) Multiply each factor the greater number of times it occurs in steps or above to find the LCM:

LCM = 3 × 3 × 7 × 13

<u>4)</u><u> LCM = 819</u>

You might be interested in

How many ways can a committee chairman choose 4 people for a subcommittee if there are 12 members on the whole committee?

Marina86 [1]

A group of k elements can be chosen from a group of n elements in $\frac{n!}{k!(n-k)!}$ ways.

$(^{12} _4)=\frac{12!}{4!(12-4)!}=\frac{12!}{4! \times 8!}=\frac{8! \times 9 \times 10 \times 11 \times 12}{2 \times 3 \times 4 \times 8!}=\frac{9 \times 10 \times 11 \times 12}{2 \times 3 \times 4}= \\ \\
=3 \times 5 \times 11 \times 3=495$

The answer is B. 495.

7 0

3 years ago

Identify the new fractions with the common denominator. 2/5 + 1/3

xxMikexx [17]

Answer:

11/15

Step-by-step explanation:

2/5 + 1/3

6/15 + 5/15 (which are equivalent fractions of 2/5 and 1/3 respectively)

11/15

4 0

3 years ago