Question

Which is the greatest number?
A.
Six and four hundred fifty-seven thousandths

B.
Six and one hundred seventy-nine thousandths

C.
6.39

D. 6x1+5x1/10+2x1/100

Answer 1

To compare the numbers, we can convert each option into a numerical form:

A. Six and four hundred fifty-seven thousandths = 6.457
B. Six and one hundred seventy-nine thousandths = 6.179
C. 6.39 = 6.390 (for easier comparison)
D. 6x1 + 5x1/10 + 2x1/100 = 6 + 0.5 + 0.02 = 6.52

Now we can compare the numerical values:

- A: 6.457
- B: 6.179
- C: 6.390
- D: 6.52

The greatest number is **A. Six and four hundred fifty-seven thousandths (6.457)**.