Images 9.1 10

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9.1 10. (1,8+3,7) 4,6. 7/4:(7/8-3/4). (3 3/8) 4/3. (4,8-7,4) :0,4.
(1,8+3,7) 4,6. 7/4:(7/8-3/4). (3 3/8) 4/3. (4,8-7,4) :0,4.

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