I need help with this problem.

Estimate 16 20/21 times 28 3/7
minus 4 13/25 plus 8 2/47 as a whole
number or as a mixed number where the
fractional part is 1/2

(Possible answers) One is the correct
answer.

A. 452
B. 480
C. 488
D. 492 1/2

I have tried to work this and keep
coming up with 476. Which I know is
wrong. Because the correct answer is
A,B,C, or D.

Will you please try to help!!!

Thank you so very much!!

Will someone please help?

I would say C 488.

You are meant to estimate to wholes or halves so round the numbers...

17*28.5-4.5+8=488

Not exactly what I would call "estimation" but that is the best result I can see given your choices...

What is one-eighth times 17?