explain 9/17-1/9
Let's calculate: 917 -19
ⓘTo add fractions, put them over the same denominator, then add the numerators
9×9 -1×1717×9
ⓘMultiplications are done before additions and subtractions: 9×9 = 81‖-1×17 = (10 + 7)×-1 = 10×-1 + 7×-1 = -10 -7 = -17‖17×9 = (10 + 7)×9 = 10×9 + 7×9 = 90 + 63 = 153
81 -17153
ⓘThe numerator and the denominator are computed before the division: 81 -17 = 64
▶Result:   64153
The numeric value of: 64153 equals:
▷ ≈ 0.4183