Question

please answer L step by step please please ​

Answer 1

Step-by-step explanation:

uppr is minus minus all up it will come minis ans down you should minus each other youll get your and

Answer 2

18/21 - 4/7

We will take L.C.M of 21 and 7 which is 21

Now we will multiply 4/7 by 3

4/7 × 3/3

12/21

So, 18/21 - 12/21

=6/21

I hope it helps you dear