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Ответ:

(1) 14 7/24 = 343/24

10 31/48 = 511/48

343/24-511/48=686/48-511/48=175/48

(2) 2 3/4 - 1 7/12 = 11/4-19/12=33/12-19/12=14/12

(3) 175/48-14/12=175/48-56/48=119/48

(4) 6 13/24-119/48=157/24-119/48=314/48-119/48=195/48

(5) 195/48-1 1/16= 195/48-17/16=195/48-51/48= 144/48=3