explain 2/9-7/12
Let's evaluate: 29 -712
ⓘTo add fractions, put them over the same denominator, then add the numerators
2×4 -7×39×4
ⓘMultiplications are done before additions and subtractions: 2×4 = 8
ℹ-7×3 = -21‖9×4 = 36
8 -2136
ⓘThe numerator and the denominator are computed before the division: 8 -21 = -13
▶Result:   -1336
The approximate value of: -1336 is:
▷ ≈ -0.3611