Question

How do you simplify `0.3 div 129`?

Answer 1

See a solution process below:

Explanation:

We can rewrite the expression as:

`3/1 -: 129/1 => (3/10)/(129/1)`

Now, we can use this rule for dividing fractions to evaluate the expression:

`(color(red)(a)/color(blue)(b))/(color(green)(c)/color(purple)(d)) = (color(red)(a) xx color(purple)(d))/(color(blue)(b) xx color(green)(c))`

`(color(red)(3)/color(blue)(10))/(color(green)(129)/color(purple)(1)) =>`

`(color(red)(3) xx color(purple)(1))/(color(blue)(10) xx color(green)(129)) =>`

`(cancel(color(red)(3))color(red)(1) xx color(purple)(1))/(color(blue)(10) xx cancel(color(green)(129))color(green)(43)) =>`

`1/430`