2.1*3.8= 1 11/13*(-2 7/16 )= -18.36: 18= -14.16: (-0.6)= -3.4*2.7= -1 3/11*(-2 2/21)= -12.72: (-0.4)= 15.45: (-15)=

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Математика: 2.1*3.8= 1 11/13*(-2 7/16 )= -18.36: 18= -14.16: (-0.6)= -3.4*2.7= -1 3/11*(-2 2/21)= -12.72: (-0.4)= 15.45: (-15)=

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1) -7.98     3) -1.02    2) 2997/208 дробь числ. и знамен.   4) 23.6   5) -9.18   6) 26/21 числ. знамен.7) 31.8   8) -1.03...

2.13.8= 1 11/13(-2 7/16 )= -18.36: 18= -14.16: (-0.6)= -3.42.7= -1 3/11(-2 2/21)= -12.72: (-0.4)= 15.45: (-15)=