10 x 40 = 400 so the answer is 400 pieces of chalk.
Answer:
Erm idk what you meant but the answers either 0.8 or .125
Hope this helped!
Good luck :p
~ Emmy
The answer for your problem is shown on the picture.
For dividing fractions you should always use the KCF method: Keep Change Flip
6/10 divided by 12/7
Kcf method:
6/10*7/12= 42/120
42/120 in simplest form will be 7/20
So the answer is A