How do you simplify 3/7 - 4/m

Question

asked Jun 19, 2017 88.0k views

2 Answers

Krzysztof Kozmic · Answer 1 · 2017-06-20T08:04:27+0000

Answer: The required simplified form of the given expression is

(3m-28)/(7m).

Step-by-step explanation: We are given to explain the simplification of the following repression :

E=(3)/(7)-(4)/(m)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

Since the denominators are different in both the fractions, so we wiill take the L.C.M. of the denominators.

Now, L.CM.(7, m) = 7m.

So, we have from (i) that

$E\\\\\\=(3)/(7)-(4)/(m)\\\\\\=(3* m-4*7)/(7m)\\\\\\=(3m-28)/(7m).$

Thus, the required simplified form of the given expression is

(3m-28)/(7m).