9 - 31/2 = 51/2
3 quarters is 9 twelfths, so 9 twelfths minus 3 twelfths is 6 twelfths, which is also a half.
9 - -3 = 9 + 3 = 12 12 - 8 = 4 9 - -3 - 8 = 4
one half
-9
2 - (-9) - 8 = 3
3 and a half = 3.53.5 - 9 = -5.5
2 9/10
3 quarters is 9 twelfths, so 9 twelfths minus 3 twelfths is 6 twelfths, which is also a half.
3 9/10.
3 and a half
minus 21 think of it as 12+9 which equals 21 then just whack a minus sign infront
3 minus -9 is 12.
1
-3
0.5x - 3 < 6 - x 1.5x - 3 < 6 1.5x < 9 3x < 18 x < 6
It is -6 minus -9 = +3. That's because minus -9 is the same as +9.
12 and 1 half minus 3 and 5 6ths = 8 2/3