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A)7,375
B)2
C)z tym nie jestem pewna 6 41/60
A) 9/4 : 18/7 +65/10 =
9/4 *7/18 +65/10=
7/8+65/10=
590/80=
7,375
B)23/5:(11 12/30- 8 10/30) + 5/10=
23/5 : 3 2/30 + 5/10=
23/5 *30/92= +5/10 =
1,5 +0,5=
2
C)27/5* 15/10 - 25/10 (64/10 - 35/6)=
81/10 -25/10 (192/30- 175/30)=
81/10 -25/10 *17/30=
81/10 - 17/12=
486/60-85/60=
401/60=
6 41/60
PROSZĘ > !