Oblicz zamieniając na umłaki zwykłe
a)2i dwie tzrecie *(0,6+1i cztery drugie)=
2 2/3 *(0,6 + 1 4/2) =
= 2 2/3 *(0,6 + 3 )=
=8/3 * 3,6 =
= 8/3 * 18/5 =
= 48/5 =
= 9 3/5
2 i 2/3 * 6/10 + 1i 4/2 = 8/3 * 6/10= (ale skracamy) czyli 4/3 * 6/5 = 24/15 = 1 i 9/15 + 1 4/2 = 2 i 13/15
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2 2/3 *(0,6 + 1 4/2) =
= 2 2/3 *(0,6 + 3 )=
=8/3 * 3,6 =
= 8/3 * 18/5 =
= 48/5 =
= 9 3/5
2 i 2/3 * 6/10 + 1i 4/2 = 8/3 * 6/10= (ale skracamy) czyli 4/3 * 6/5 = 24/15 = 1 i 9/15 + 1 4/2 = 2 i 13/15