explain 13/15+11/17
Let's evaluate: 1315 + 1117
ⓘTo add fractions, put them over the same denominator, then add the numerators
13×17 + 11×1515×17
ⓘMultiplications are done before additions and subtractions:
13×17 = 17×(10 + 3) = 17×10 + 17×3 = 170 + 51 = 221‖11×15 = 15×(10 + 1) = 15×10 + 15 = 150 + 15 = 165‖15×17 = 17×(10 + 5) = 17×10 + 17×5 = 170 + 85 = 255
221 + 165255
ⓘThe numerator and the denominator are computed before the division: 221 + 165 = 386
▶Result:   386255
The approximate value of: 386255 equals:
▷ ≈ 1.5137