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= 1/2 * 3/4 l + 1/4 * 1 i 5/10 l =
= 3/8 l + 1/4 * 1 i 1/2l =
= 3/8 l + 1/4 * 3/2 l =
= 3/8 l + 3/8 l =
= 6/8 l =
= 3/4 l
Odp. Otrzymano 3/4 l napoju.
lub na ułamkach dziesiętnych
0,5 * 0,75 l + 0,25 * 1,5 l =
= 0,375 l + 0,375 l =
= 0,75 l
= 1/2 * 3/4 l + 1/4 * 1 i 5/10 l =
= 3/8 l + 1/4 * 1 i 1/2l =
= 3/8 l + 1/4 * 3/2 l =
= 3/8 l + 3/8 l =
= 6/8 l =
= 3/4 l
Odp. Otrzymano 3/4 l napoju.
lub na ułamkach dziesiętnych
0,5 * 0,75 l + 0,25 * 1,5 l =
= 0,375 l + 0,375 l =
= 0,75 l
Odp. Otrzymano 0,75 l napoju.