Use the distributive property:
17pi/6 - 2pi = (17/6 - 2) pi. Now, just subtract the fractions as you normally would.
Unfortunately, 2 over 2 minus 1 equals 5 over 6 is just a wrong answer! If it is 2 over 2, minus 1, the answer is that it equals zero. If it is 2, over 2 minus 1, the answer is that it equals 2.
2 minus 2/5 plus 1/2 minus 4 = -1.9
A negative number that is not an integer, of course. Examples are minus 1.5, minus pi, minus square root of 2, etc.
2/5 minus 1/15 is 1/3
3/6 minus 2/8 is 1/4
Minus square root of 2, minus square root of 3, minus pi, minus e, etc. Or, to be a bit more fancy, 1 - pi, 2 - pi, 3 - pi, pi - 4, pi - 5, 2 - e, e - 3, square root of 2 minus 2, etc.
2 pi / 2 = pi.
(pi/2)-1 = 2/pi
Unfortunately, 2 over 2 minus 1 equals 5 over 6 is just a wrong answer! If it is 2 over 2, minus 1, the answer is that it equals zero. If it is 2, over 2 minus 1, the answer is that it equals 2.
2 minus 2/5 plus 1/2 minus 4 = -1.9
A negative number that is not an integer, of course. Examples are minus 1.5, minus pi, minus square root of 2, etc.
sin(pi/2)=1
The answer is:cos (pi/2) = 0
(pi^2+2pi)/2pi
2/3 minus 12/15 is -2/15
2 minus 5/2 equals -1/2
3/2 minus 2 equals -1/2