How do you find the product of a fraction then put it in simplest form

Turn it into a improper fraction. 7*1=7+1=8 . SO it would be 8/7
4*1=4+3=7/4. Multiply them. 8/7* 7/4=56/28. They could both be divided by 4.
56/4=14. 28/4=7. 14/7=2. So 2 is the simplest form 

1 1/7 x 1 3/4= 2
Change the mixed fraction to an improper fraction: 1 1/7=8/7
                                                                                         1 3/4=7/4
Multiply the two fraction: 8/7 x 7/4 = 56/28
Now reduce by figuring out how much 28 can go into 56.
The answer is a whole number which is 2!