Question

Simplify 4/10 - 2/15

Answer 1

`(4)/(10) - (2)/(15) \\ \\ (2)/(5) - (2)/(15) \\ \\ LCD = 15 \\ \\ (2 * 3)/(5 * 3) - (2)/(15) \\ \\ (6 - 2)/(15) \\ \\ (4)/(15) \\ \\`

The answer is: 4/15 or 0.2667.

Answer 2

You have to make the denominTors even, in this. Case it is 30. So you mutiply the 4 by 3 because you mutiply true 10 by 3 to get 30. So that fraction is now 12/30. Then mutiply the 2 by 2 because the 15 gets multiplied by 2 to get 30. So your equation is now 12/30 - 4/30. And you solve that to make 8/30. Simplify it to get 4/15. 4/15 is the answer. Hope this helps.