Can someone please help me with math problem and explain to me step by step how to solve it so I will know how solve other problems like this Thank you in advance

Multiply and then, if possible, simplify by factoring /7x /21y

It would help if you proofread your questions before you posted them.

Sure, I can help you with that math problem.

The expression you provided is (7x)/(21y). To multiply and simplify by factoring, you'll need to follow these steps:

Step 1: Simplify numerator and denominator separately (if possible).
In this case, 7 is a prime number, so the numerator can't be simplified any further. As for the denominator, the number 21 can be factored into 7 and 3: 21 = 7 * 3.
Therefore, the expression becomes (7x)/(7 * 3y).

Step 2: Cancel out common factors.
Now that we have factored the denominator, we notice that there is a common factor of 7 in both the numerator and denominator. We can cancel it out, simplifying the expression.
(7x)/(7 * 3y) = (x)/(3y)

So, the simplified expression is (x)/(3y).

To summarize:
(7x)/(21y) = (x)/(3y)

Remember, when simplifying expressions, look for common factors that can be canceled out.