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e)pierw.z18i7/9=pierw.z169/9=13/3=4i1/3
f)pierw.stp3.z15i5/8=pierw.stp3.z125/8=5/2
g)pierwz11i2/3÷pierw.z4i1/5=pierw.z35/3÷21/5=pierw.z35/3*5/21=pierw.z25/9=5/3
h)pierw.stp3z1i1/8*pierws.stp3.z10i1/8=pierw.stp.3z9/8*81/8=pierw.stp3z729/8=9/8