a)5 3/4:9/10= b)1 1/5:62/5 c) 7/20*12 d)20*(16 3/8 - 5 3/5 e) 16 3/4 *5 2/3 * 1/2 2.. 5x+4=4x-11 b) 11/15x+1/5=3 c)2x-3=5+y / ulamek * razy = rowna sie
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a) 3/4: 9/10= 3/4*10/9=5/6
b) 11/5 : 62/5= 11/5* 5/62= 11/62
c) 7/20*12= 42/10=4,2
d) nie rozumeim zapisu
reszta niejasna jak dla mnie