hej, pomożecie mi rozwiązać ? |Bardzo proszę, żeby były obliczenia ;
1 3/4 * 2/5=
3 * 1 2/5=
2,4:1,2=
3/5-1 2/3=
3 2/6-2 1/2=
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1 3/4 * 2/5= 6/20
3 * 1 2/5= 3/1 * 7/5 = 21/5
2,4:1,2=24/10 : 12/10 = 24/10 * 10/12 = 24/12 = 2
3/5-1 2/3= 3/5 - 5/3 = 9/15 - 25/15 = -16/15
3 2/6-2 1/2= 2/6 - 5/2 = 2/6 - 15/6 = -13/6
1 3/4 * 2/5= 7/4 * 2/5 = 14/20
3 * 1 2/5= 3/1 * 7/5 = 21/5
2,4:1,2= 24/10 : 12/10 = 24/10 * 10/12 = (skracamy) = 2/1 *1/1 = 2
3/5-1 2/3= 3/5 - 5/3 = (wspólny mianownik = 15) = 9/15 - 25/15 = - 16/15 = - 1 1/15
3 2/6-2 1/2= 20/6 - 5/2 = (wspólny mian =6) = 20/6 - 15/6 = 5/6