# Divide 1 2/5 by 21.

I got 15 as the answer.

## If that is 2/5

(2/5)/21 =

since 21 is actually 21/1
flip and multiply

(2/5)*(1/21)= 2/105= 0.01904
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If it's

(12/5)/21= 0.1143

Please be more specific as to whether that is a #1 or 1 is part of the question because you put a space in between the 1 and 2/5 which would lead to different answers but not 15.

## Then again it could have been a fraction with

1 2/5 = 7/5 if this is true...

(7/5)/21= 0.0666

Writing it differently can mean alot of things you see.

## 1 is part of the problem.

1 and 2/5 divided by 21

The possible answers given are :

a. 1/15
b. 1 2/105
c. 15
d. 29 2/5

1/15.

## To divide the mixed number 1 2/5 by 21, you need to convert the mixed number into an improper fraction and then divide it by 21.

First, convert the mixed number 1 2/5 into an improper fraction:

1 2/5 = (5*1 + 2)/5 = 7/5

Now, divide the improper fraction 7/5 by 21:

7/5 ÷ 21

To divide fractions, you need to invert the second fraction (21) and then multiply:

7/5 ÷ 21 = 7/5 * 1/21

Multiply the numerators and denominators together:

7/5 * 1/21 = 7/105