U would need 1/2 of 3/4..." of " means multiply
1/2 * 3/4 = 3/8
Or...u could divide 3/4 by 2
(3/4) / 2 = ....when dividing fractions, flip what u r dividing by, then multiply
3/4 * 1/2 = 3/8
Step-by-step explanation:

its 1/4 of the circle
circle circumference:

we need 1/4 of it, so its

If you divide 1,200 and 40 it equals 30 then you take 250 subtract 30 the answer is 220