Номер 902 пожалуйста. Created by NastenkaLD. matematika-ru

Номер 902 пожалуйста...

xxxeol

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РЕШЕНИЕ
а) 6 : (1/2+1/2) = 6 : 1= 6
б) 12 : (1/2+1/2+1/2+1/2) = 2 : 2 = 6
в) (1/5+1/5+1/5)* 1/3 = 3/5 * 1/3 = 1/5
г) (2/7+2/7+2/7+2/7)* 21/8 = 8/7 * 21/8 = 21/7 = 9
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2 votes Thanks 2

xxxeol ИСПРАВИТЬ в) 3/5*1/3 = 5

xxxeol ИСПРАВЛЕНО

vfhb1381 А) 6:(1/2+1/2)=6:1=6
б) 12: (1/2+1/2+1/2+1/2)=12:4/2=12:2=6
в) (1/5+1/5+1/5)*1/3=3/5*1/3=1/5
г) (27+2/7+2/7+2/7)*21/8=8/7*21/8=3

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