No it will be 5% more than what it was
you keep them how they are but put them side by side
for example multiply 2/9* 3/2 you will get 6/18 then simplify if needed, 3/9, 1/3
I know only how to solve one, using the Pythagorean theorem, you have to square 45
Which is
45^2 - 25^2 = 1400
Now you multiply 37.42 x 37.42 which gets you 1400.2564
I’m in 8th grade by the way