Matematyka z plusem.Klasa 5 .Żółte ćwiczenia.Zadanie 6.Oblicz: Na teraz plisss: 2/3+4/7= 5/6+7/9= 5/8+3/10= b)2 3/4+1/6= 4 8/9 + 2 7/10 = i tAK DALEJ PLISS NA TERAZ!

a) 2/3 +  4/7 = 14/21+12/21 = 26/21 = 1 5/21 5/6 +7/9  = 15/18 + 14/18 = 29/18 5/8 + 3/10 = 25/40+12/40_ 37/40 b) 2 3/4 + 1/6 =  11/4 + 1/6 = 66/24 + 4/24 = 70/24 = 2 48/24 4 8/9 + 2 7/10 = 44/9 + 27/10 = 440/90 + 243 / 90 = 683/ 90