How do you simplify 2/(5m)-1/(15m^3)?

2 Answers
Mar 12, 2018

(6m^2 - 1)/(15m^3)

Explanation:

2/(5m) - 1/(15m^3)

We need a common denominator:

(3m^2)/(3m^2) xx (2)/(5m) - (1)/(15m^3)

(6m^2)/(15m^3) - (1)/(15m^3)

(6m^2 - 1)/(15m^3)

Mar 12, 2018

(6m^2-1)/(15m^3)

Explanation:

Expand the fraction

(3m^2*2)/(3m^2*5m)-1/(15m^3)

Calculate the products

(6m^2)/(15m^3)-1/(15m^3)

Write all the numerators above the common denominator

(6m^2-1)/(15m^3)