explain 3/19-3/4
Let's evaluate: 319 -34
ⓘTo add fractions, put them over the same denominator, then add the numerators
3×4 -3×1919×4
ⓘMultiplications are done before additions and subtractions: 3×4 = 12‖-3×19 = (10 + 9)×-3 = 10×-3 + 9×-3 = -30 -27 = -57‖19×4 = (10 + 9)×4 = 10×4 + 9×4 = 40 + 36 = 76
12 -5776
ⓘThe numerator and the denominator are computed before the division: 12 -57 = -45
▶Result:   -4576
The approximate value of: -4576 equals:
▷ ≈ -0.5921