Question

6•11-6•9
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24

Answer 1

(6*11 - 6*9) / 24 = 6 * (11-9) / 24 = 6*2 / 24 = 12/24 = 1/2

(5*3) / (6*10) = (5*3) / (2*3 * 5*2) = 1/4