POtrzebuje koniecznie na dzisiaj proszę :(:(: pomocy :( jest w załączniku :) Dziękuje , dziękuje !
2 5/10*{8/15-(0,15)]+(-5/24) / [1 3/4+(1 1/6):2 1/2 =
25/10*[8/15-15/100]-5/24 / [1 3/4-1 1/6:5/6]=
25/10*[160/300-45/300]-5/24 / [1 3/4-7/6*6/5]=
25/10*115/300-5/24 / 1 3/4-7/5=
115/120-5/24 / 1 15/20-28/20=
115/120-25/120 / 35/20-28/20=
90/120: 7/20=90/120 *20/7=90/42=2 6/42= 2 1/7
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2 5/10*{8/15-(0,15)]+(-5/24) / [1 3/4+(1 1/6):2 1/2 =
25/10*[8/15-15/100]-5/24 / [1 3/4-1 1/6:5/6]=
25/10*[160/300-45/300]-5/24 / [1 3/4-7/6*6/5]=
25/10*115/300-5/24 / 1 3/4-7/5=
115/120-5/24 / 1 15/20-28/20=
115/120-25/120 / 35/20-28/20=
90/120: 7/20=90/120 *20/7=90/42=2 6/42= 2 1/7