3całe4/5+2całe1/3+2całe4/5=
5całych1/4-3całe7/8=
9całych1/3:2całe1/3=
19/5 + 7/3 + 14/5 = 23/5 + 7/3 = (66+35)/15 = 101/15 = 6 calych 11/15
21/4 - 31/8 = 42/8 - 31/8 = 11/8 = 1 cała 3/8
28/3:7/3 = 28/3*3/7 = 84/21 = 4
19/5 + 7/3 + 14/5 = 57/15 + 35/15 + 42/15 = 134/15 = 8 całych i 14/15
21/4 - 31/8 = 42/8 - 31/8 = 11/8 = 1cała i 3/8
28/3 : 7/3 = 28/3 * 3/7 = 84/21 = 4
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19/5 + 7/3 + 14/5 = 23/5 + 7/3 = (66+35)/15 = 101/15 = 6 calych 11/15
21/4 - 31/8 = 42/8 - 31/8 = 11/8 = 1 cała 3/8
28/3:7/3 = 28/3*3/7 = 84/21 = 4
19/5 + 7/3 + 14/5 = 57/15 + 35/15 + 42/15 = 134/15 = 8 całych i 14/15
21/4 - 31/8 = 42/8 - 31/8 = 11/8 = 1cała i 3/8
28/3 : 7/3 = 28/3 * 3/7 = 84/21 = 4