2*10+2*9+2*8/2*9+(4*2)*2=(2*2+2+1)×2*8/2*9+4*4=(4+2+1)×2*8/2*9+2*8=7×2*8/(2+1)×2*8=7/3=2 1/3
/-дробь, *2 квадрат
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2*10+2*9+2*8/2*9+(4*2)*2=(2*2+2+1)×2*8/2*9+4*4=(4+2+1)×2*8/2*9+2*8=7×2*8/(2+1)×2*8=7/3=2 1/3
/-дробь, *2 квадрат