How do you simplify 0.3 div 1290.3÷129?

1 Answer
Mar 19, 2018

See a solution process below:

Explanation:

We can rewrite the expression as:

3/1 -: 129/1 => (3/10)/(129/1)31÷12913101291

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))abcd=a×db×c

(color(red)(3)/color(blue)(10))/(color(green)(129)/color(purple)(1)) =>3101291

(color(red)(3) xx color(purple)(1))/(color(blue)(10) xx color(green)(129)) =>3×110×129

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

1/430