12 7/16 - 5 5/8 · 22/27 - 1 3/8 · 5/6 + 7/24 = 7
1) 5 5/8 · 22/27 = 45/8 · 22/27 = (5·11)/(4·3) = 55/12 = 4 7/12
2) 1 3/8 · 5/6 = 11/8 · 5/6 = 55/48 = 1 7/48
3) 12 7/16 - 4 7/12 = 12 21/48 - 4 28/48 = 11 69/48 - 4 28/48 = 7 41/48
4) 7 41/48 - 1 7/48 = 6 34/48 = 6 17/24
5) 6 17/24 + 7/24 = 6 24/24 = 7
Ответ: 7.
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12 7/16 - 5 5/8 · 22/27 - 1 3/8 · 5/6 + 7/24 = 7
1) 5 5/8 · 22/27 = 45/8 · 22/27 = (5·11)/(4·3) = 55/12 = 4 7/12
2) 1 3/8 · 5/6 = 11/8 · 5/6 = 55/48 = 1 7/48
3) 12 7/16 - 4 7/12 = 12 21/48 - 4 28/48 = 11 69/48 - 4 28/48 = 7 41/48
4) 7 41/48 - 1 7/48 = 6 34/48 = 6 17/24
5) 6 17/24 + 7/24 = 6 24/24 = 7
Ответ: 7.