explain 1/20-11/16
Let's evaluate: 120 -1116
ⓘTo add fractions, put them over the same denominator, then add the numerators
1×4 -11×520×4
ⓘMultiplications are done before additions and subtractions:
-11×5 = (-10 -1)×5 = -10×5 -1×5 = -50 -5 = -55
ℹ1×4 = 4‖20×4 = 80
4 -5580
ⓘThe numerator and the denominator are computed before the division: 4 -55 = -51
▶Result:   -5180
The approximate value of: -5180 equals:
▷ -0.6375