Odpowiedź :
[tex]a) 5\frac37+2\frac67=7\frac97=8\frac27\\\\b) 3\frac58-1\frac18=2\frac48=2\frac12\\\\c) 6\frac25+5\frac35=11\frac55=12\\\\d) 7\frac56-3\frac16=4\frac46=4\frac23\\\\e) 4\frac25+3\frac45=7\frac65=8\frac15\\\\f) 7\frac34-2\frac14=5\frac24=5\frac12\\\\g) 3\frac56+2\frac56=5\frac{10}6=6\frac46=6\frac23\\\\h) 11\frac49-5\frac19=6\frac39=6\frac13[/tex]
Odpowiedź:
5 i 3/7 + 2 i 6/7 = 7 i 9/7 = 8 i 2/7
3 i 5/8 - 1 i 1/8 = 2 i 4/8 = 2 i 1/2
6 i 2/5 + 5 i 3/5 = 11 i 5/5 = 12
7 i 5/6 - 3 i 1/6 = 4 i 4/6 = 4 i 2/3
4 i 2/5 + 3 i 4/5 = 7 i 6/5 = 8 i 1/5
7 i 3/4 - 2 i 1/4 = 5 i 2/4 = 5 i 1/2
3 i 5/6 + 2 i 5/6 = 5 i 10/6 = 6 i 4/6 = 6 i 2/3
11 i 4/9 - 5 i 1/9 = 6 i 3/9 = 6 i 1/3