1. A = 828/756 = (828÷36)/(756÷36) = 23/21
2. B = 112/84 = (112÷28)/(84÷28) = 4/3
3. 828/756 + 112/84 = 828/756 + (112×9)/(84×9) = 828/756 + 1008/756
(828+1008)/756 = 1836/756 = 17/7
4. 828/756 × 112/84 = (828×112)/(756×84) = 92 736/63 504 = 92/63
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1. A = 828/756 = (828÷36)/(756÷36) = 23/21
2. B = 112/84 = (112÷28)/(84÷28) = 4/3
3. 828/756 + 112/84 = 828/756 + (112×9)/(84×9) = 828/756 + 1008/756
(828+1008)/756 = 1836/756 = 17/7
4. 828/756 × 112/84 = (828×112)/(756×84) = 92 736/63 504 = 92/63