explain 9/17-7/19
Let's evaluate: 917 -719
ⓘTo add fractions, put them over the same denominator, then add the numerators
9×19 -7×1717×19
ⓘMultiplications are done before additions and subtractions:
9×19 = (10 + 9)×9 = 10×9 + 9×9 = 90 + 81 = 171‖-7×17 = (10 + 7)×-7 = 10×-7 + 7×-7 = -70 -49 = -119‖17×19 = 19×(10 + 7) = 19×10 + 19×7 = 190 + 133 = 323
171 -119323
ⓘThe numerator and the denominator are computed before the division: 171 -119 = 52
▶Result:   52323
The numeric value of: 52323 is:
▷ ≈ 0.1610