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Jawab:

Penjelasan dengan langkah-langkah:

24/M = 18/26

24/M = 9/13 (dikecilin)

8/M = 3/13

dikali silang

8×13 = 3M

3M = 104

M = 104 / 3

18/26 = N/100

9/13 = N/100

900 = 13N

N = 900/13

M+N

= 104/3 + 900/ 13

= 4052/39