ułamki . uzupełnij puste miejsca 3/4=?/8, 2/5=?/15,
3/4=6/82/5=6/15
3/4 = 6/8 (3*2 / 4*2 = 6/8)
2/5 = 6/15 (2*3 / 5*3 = 6/15)
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3/4=6/8
2/5=6/15
3/4 = 6/8 (3*2 / 4*2 = 6/8)
2/5 = 6/15 (2*3 / 5*3 = 6/15)