1 2/5 divided by 21
Which is correct?
A. 21/1 x 5/7 = 105/7 =15
or
B. 1/21 x 7/5 = 7/105 / 7/7 = 1/15
Neither is correct. The answer is (2/5)/21 = 2/(5*21) = 2/105. Are you sure you copied the problem correctly?
1 2/5 divided by 21
sorry. I missed the "1" out front.
The answer is (7/5)/21 = 7/105
So, the answer is 15 or 1/5?
7/105 = 1/15
That is what I got.Good job DUDE.
I agree with drwis.... Are you sure you copied the problem correctly?
P.S. --- Is this your homework??
It seems that there was some confusion in the initial question. Let's clarify the problem:
The original question was "1 2/5 divided by 21."
To solve this problem, we need to convert the mixed number 1 2/5 to an improper fraction.
To do this, we multiply the whole number (1) by the denominator of the fraction (5) and add the numerator (2). This gives us (1 * 5 + 2 = 7) as the new numerator. The denominator remains the same, which is 5.
So 1 2/5 is equivalent to 7/5.
Now, let's divide this by 21.
To divide fractions, we multiply the first fraction by the reciprocal of the second fraction.
So, (7/5) ÷ 21 is the same as (7/5) * (1/21).
To multiply fractions, we multiply the numerators together and the denominators together.
Multiplying, we get (7 * 1)/(5 * 21), which simplifies to 7/105.
Therefore, the correct answer to the problem "1 2/5 divided by 21" is 7/105.