Ответ:
(5,2-3⅓)÷1⅓=(26/5-10/3)÷⁴/³=28/15*¾=7/5=1_2/5=1,4.
(3/8+2_1/7*1_1/20)*1⅓=(3/8+15/7*21/20)*⁴/³=(3/8+3*¾)*4/3=(3/8+9/4)*⁴/³=21/8*4/3=7/2=3_½=3,5.
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Ответ:
(5,2-3⅓)÷1⅓=(26/5-10/3)÷⁴/³=28/15*¾=7/5=1_2/5=1,4.
(3/8+2_1/7*1_1/20)*1⅓=(3/8+15/7*21/20)*⁴/³=(3/8+3*¾)*4/3=(3/8+9/4)*⁴/³=21/8*4/3=7/2=3_½=3,5.