7/12-16/17
Let's calculate: 712 -1617
7×17 -16×1212×17
ℹ7×17 = 119‖-16×12 = -192‖12×17 = 204
119 -192204
ℹ119 -192 = -73
▶Result:   -73204
The approximate value of: -73204 equals:
▷ ≈ -0.3578