Ответы на вопрос:
(2 5/14×4 2/3-5 1/4+12÷2 1/4)÷(9 7/18-2 5/9)= 1) 2 5/14×4 2/3=33/14×14/3 =11 2) 11-5 1/4=5 3/4 3) 12: 2 1/4=12×4/9=16/3= 5 1/3 4) 5 3/4+5 1/3= 10+(9/12+4/12)=10+1 1/12=11 1/12 5) 9 7/18-2 5/9= 7+(7/18-10/18)=7 - 1/6=6 5/6 6) 11 1/12: 6 5/6=133/12×6/41 =266/164=133/82=1 51/82
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