The answer depends on what you mean by "nevitive 38ths".
if you mean 5/8 versus 3/8, it's 5/8. if you mean 58ths or 38ths, it's 38ths
1/38 = 0.02632 (approx).
1 multiplied by 40 equals 40.
3/8 cup is 18 teaspoons.
1/38 pound is 0.42 ounces.
Multiply it by 100 to change it into a percentage
40-n equals 28 = 12
200 divided my 40 equals = 5
The least common multiple (LCM) of 10 and 40 is 40. 40 times 1 equals 40, and 10 times 4 equals 40.
2 3 8ths +5 7 8ths
It equals 40. If you are prepared for it, it also equals 39.999... (repeating).