explain 8/19-7/16
Let's calculate: 819 -716
ⓘTo add fractions, put them over the same denominator, then add the numerators
8×16 -7×1919×16
ⓘMultiplications are done before additions and subtractions:
8×16 = (10 + 6)×8 = 10×8 + 6×8 = 80 + 48 = 128‖-7×19 = (10 + 9)×-7 = 10×-7 + 9×-7 = -70 -63 = -133‖19×16 = 19×(10 + 6) = 19×10 + 19×6 = 190 + 114 = 304
128 -133304
ⓘThe numerator and the denominator are computed before the division: 128 -133 = -5
▶Result:   -5304
The numeric value of: -5304 equals:
▷ ≈ -1.6447×10-2