wykonaj dodawanie ułamków:
1/13+5/13= 2⅙+1⅙= 1³/₇+⁴/₉+2¹/₂₁=
7/31+19/31= 4⅝+11⅞= 7⁷/₃₆+95⅝+4⅚=
7/9+19/27= 3⁵/₇+3⅘=
1/25+13/15= 3⁷/₉+6²/₃=
wykonaj odejmowanie ułamków
14/33-9/33= 2¹/₆-14/₆= 8¼-7⅙=
8/9-6/45= 5 ⁷/₁₀-1⁹/₁₀=
25/36-4/6= 11⁵/₁₁-8⁸/₁₁=
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1/13+5/13=6/13
7/31+19/31=26/31
7/9+19/27=10/27
1/25+13/15=21/75
2⅙+1⅙=3 1/6
4⅝+11⅞=15 /12/2 = 21 całych
3⁵/₇+3⅘=7 10/35
3⁷/₉+6²/₃= 9 27/9 = 12 całych
1³/₇+⁴/₉+2¹/₂₁= 3 40/63
7⁷/₃₆+95⅝+4⅚=118 70/72
odejmowanie
14/33-9/33=5/33
2¹/₆-14/₆=-1/6 ( nie jestem pewny)
8¼-7⅙=8 25/12 - 7 15/12 = 1 10/12
8/9-6/45=13/45 - 6/45 =7/45
5 ⁷/₁₀-1⁹/₁₀=4 17/10 - 1 9/10 = 3 8/10
25/36-4/6=25/36 - 10/36 = 15/36
11⁵/₁₁-8⁸/₁₁=10 16/11-8 8/11= 2 8/11
1/13+5/13=6/13
7/31+19/31=26/31
7/9+19/27=21/27+19/27=40/27=1 13/27
1/25+13/15=6/150+78/150=84/150=42/75