1) 70 3/35-3 31/48=2453/35-175/48=
=117744/1680-6125/1680=111619/1680=66 739/1680 м - ширина
2) 2*(70 3/35+66 739/1680)=2*(117744/1680+111619/1680)=
=2*229363/1680=229363/840=273 43/840 м - длина забора
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1) 70 3/35-3 31/48=2453/35-175/48=
=117744/1680-6125/1680=111619/1680=66 739/1680 м - ширина
2) 2*(70 3/35+66 739/1680)=2*(117744/1680+111619/1680)=
=2*229363/1680=229363/840=273 43/840 м - длина забора