Ответ:
1)
0,3 +1/3 = 3/10 +1/3= 9/30+10/30=19/30
2)
1. (2,(1)+3,(12):0,5=(2,(11)+3,(12):(1/2)=5,(23)*2=10,(46).
2. (2,(1)+3,(12):0,5=(2¹/₉+3¹²/₉₉):0,5=(2¹/₉+3¹²/₉₉):0,5=((19/9)+(309/99)):(1/2)=
=2*(19*11+309)/99=2*(209+309)/99=2*518/99=1036/99=10⁴⁶/₉₉=10,(46).
4) Вот на фото
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Answers & Comments
Ответ:
1)
0,3 +1/3 = 3/10 +1/3= 9/30+10/30=19/30
2)
1. (2,(1)+3,(12):0,5=(2,(11)+3,(12):(1/2)=5,(23)*2=10,(46).
2. (2,(1)+3,(12):0,5=(2¹/₉+3¹²/₉₉):0,5=(2¹/₉+3¹²/₉₉):0,5=((19/9)+(309/99)):(1/2)=
=2*(19*11+309)/99=2*(209+309)/99=2*518/99=1036/99=10⁴⁶/₉₉=10,(46).
4) Вот на фото