19/40 = .475
11/19 = .5789
19/40 = 2 2/40 = 2 1/20 = 2.2
11 over 40 is its simplest form
40/11 = 37/11
3 and 11 over 40 as a decimal is 3.275
11/40 = 0.275
11/40 = 275/1000 So you would WRITE 3 and 11 over 40 as 3.275
40/11 = 37/11
No
3/5 x 19/8 = 1 17/40
No - since 11 is a prime number, the proper fraction 11/40 is as simplified as it can be.