Question

What is `158.1 -:5.1`?

Answer 1

See a solution process below:

Explanation:

First, rewrite the expression as:

`158.1/5.1`

Next, multiply the fraction by a form of `1` to eliminate the decimals:

`10/10 xx 158.1/5.1 = (10 xx 158.1)/(10 xx 5.1) = 1581/51`

Now, factor and cancel common terms:

`1581/51 = (51 xx 31)/51 = (color(red)(cancel(color(black)(51))) xx 31)/color(red)(cancel(color(black)(51))) = 31`