explain 13/16-11/13
Let's evaluate: 1316 -1113
ⓘTo add fractions, put them over the same denominator, then add the numerators
13×13 -11×1616×13
ⓘMultiplications are done before additions and subtractions:
13×13 = 13×(10 + 3) = 13×10 + 13×3 = 130 + 39 = 169‖-11×16 = 16×(-10 -1) = 16×-10 + 16×-1 = -160 -16 = -176‖16×13 = 16×(10 + 3) = 16×10 + 16×3 = 160 + 48 = 208
169 -176208
ⓘThe numerator and the denominator are computed before the division: 169 -176 = -7
▶Result:   -7208
The approximate value of: -7208 is:
▷ ≈ -3.3654×10-2