Пошаговое объяснение:
2. 5/10 * 4. 5/8 + 2. 1/9 =
25/10 * 37/8 + 2. 1/9 =
925/80 + 2. 1/9 = 11. 45/80 + 2. 1/9 =
11. 9/16 + 2. 1/9 = 11. 81/144 + 2. 16/144 =
13. 97/144
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Пошаговое объяснение:
2. 5/10 * 4. 5/8 + 2. 1/9 =
25/10 * 37/8 + 2. 1/9 =
925/80 + 2. 1/9 = 11. 45/80 + 2. 1/9 =
11. 9/16 + 2. 1/9 = 11. 81/144 + 2. 16/144 =
13. 97/144