How do you simplify (8/125) -1/3?

1 Answer
Mar 17, 2016

8/125-1/3=color(blue)(-101/375)

Explanation:

In order to add or subtract fractions, they must have the same denominator, which is called the least common denominator (LCD).

8/125-1/3

Find the LCD by prime factorization of both denominators.

125=5xx5xx5
3=3

Multiply the prime factors to get the LCD.

"LCD"=3xx5xx5xx5=375

Multiply each fraction by a factor that will give each fraction the denominator 375.

(8/125xx3/3)-(1/3xx125/125)

Simplify.

24/375-125/375=

(-101)/375=

-101/375