explain 5/11+9/13
Let's evaluate: 511 + 913
ⓘTo add fractions, put them over the same denominator, then add the numerators
5×13 + 9×1111×13
ⓘMultiplications are done before additions and subtractions:
5×13 = (10 + 3)×5 = 10×5 + 3×5 = 50 + 15 = 65‖9×11 = (10 + 1)×9 = 10×9 + 9 = 90 + 9 = 99‖11×13 = 13×(10 + 1) = 13×10 + 13 = 130 + 13 = 143
65 + 99143
ⓘThe numerator and the denominator are computed before the division: 65 + 99 = 164
▶Result:   164143
The numeric value of: 164143 equals:
▷ ≈ 1.1469