a)12*a=13 1/3
b) b:4 1/2=2 2/3
c) 2 5/6:c=4 1/4
d) 2 2/5*d=9
a= 13 1/3 /12
a = 1 1/9
b = 2 2/3*4 1/2
b= 12
2 5/6 = 4 1/4 * c
2 5/6 / 4 1/4 = c
2/3 = c
d = 9/ 2 2/5
d = 3 3/4
mam nadzieję, że pomogłem :)
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a)12*a=13 1/3
a= 13 1/3 /12
a = 1 1/9
b) b:4 1/2=2 2/3
b = 2 2/3*4 1/2
b= 12
c) 2 5/6:c=4 1/4
2 5/6 = 4 1/4 * c
2 5/6 / 4 1/4 = c
2/3 = c
d) 2 2/5*d=9
d = 9/ 2 2/5
d = 3 3/4
mam nadzieję, że pomogłem :)