explain 5/12-1/2
Let's calculate: 512 -12
ⓘTo add fractions, put them over the same denominator, then add the numerators
5 -1×612
ⓘMultiplications are done before additions and subtractions: -1×6 = -6
5 -612
ⓘThe numerator and the denominator are computed before the division: 5 -6 = -1
▶Result:   -112
The approximate value of: -112 equals:
▷ ≈ -8.3333×10-2