2 2/5 · 5/6 - 3/4 · 1 2/3 = 3/4
1) 2 2/5 · 5/6 = 12/5 · 5/6 = 12/6 = 2
2) 3/4 · 1 2/3 = 3/4 · 5/3 = 5/4 = 1 1/4
3) 2 - 1 1/4 = 3/4
Ответ: 3/4.
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2 2/5 · 5/6 - 3/4 · 1 2/3 = 3/4
1) 2 2/5 · 5/6 = 12/5 · 5/6 = 12/6 = 2
2) 3/4 · 1 2/3 = 3/4 · 5/3 = 5/4 = 1 1/4
3) 2 - 1 1/4 = 3/4
Ответ: 3/4.