What's 7/12 minus 3/12 simplified? btw only in 4th grade make it clear

7/12 - 3/12 = 1/3
Simplify each fraction if possible.
Same denominator? YES!
7 - 3 = 4
Since they have the same denominator, you just subtract the numerators.
Then simplify 4/12
4/4= 1 12/4= 3
1/3
Hope that helps!

When subtracted it is 4/12. You can subtract both as they are because they both have a Common Denominator; it is 12. There is 1 more step that you have to do after subtracting. The fraction needs to be reduced. 4 and 12 are similar. You can divide the 4 into 12. Divide 4 into 4 (the numerator is 4) and divide 4 into 12 ( the denominator is 12). The answer is
1/3

Means that after 32 days, it is halved

A=P(1/2)^(t/h) is the half li fe formula

A=furter amount
P=starting amount
h=half life
t=time

so

given
starting amount=361
time=5 days
half life is 32

A=361(1/2)^(5/32)
use calculator
A=323.9449
round
A=323.95

323.95kg left