Question

Write 0.729 as a rational number

Answer 1

Answer:

729/1000

Step-by-step explanation:

uhhh its easy 0.7 is 7/10

.72 is 72/100

and .729 is 729/1000

Answer 2

Answer:

$let \: x \: = 0.729729729......... \: \: (1) \\ multiplication \: by \: 1000 \: in \: both \: id \\ 1000x = 729.729729729........ \: \: (2) \\ subtract \: equation \: (1) \: from \: equation \: (2) \\ 1000x - x = 729.729729729..... - 0.729729729.... \\ 999x = 729 \\ \\ \\ x = \frac{729}{999} \\ \\ x = \frac{81}{111} \\ \\ x = \frac{27}{37}$