## anonymous 2 years ago I need help on simplifying this fraction can someone help me please?

1. anonymous

$\frac{ 3 }{ 7 } - \frac{ 4 }{ m }$

2. anonymous

you have to put them over a common denominator. Multiply each numerator by the opposite denominator.

3. anonymous

how would i do it with a variable though?

4. anonymous

pretend it's a nmber. 3*m = 3m

5. anonymous

Ohh okay, thank you

6. anonymous

welcome, you are.