Question

Express is rational 0.001 26​

Answer 1

yes it is rational0.00126=63/50000

Answer 2

$0.00126 = \frac{0.00126 \times 100000}{100000} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{126}{100000} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{63 \times 2}{50000 \times 2} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{63}{50000} \\ hope \: it \: helps \: you$