Odpowiedź :
[tex]4 \frac{1}{5} - 2 \frac{2}{5} = 3 \frac{6}{5} - 2 \frac{2}{5} = 1 \frac{4}{5} kg[/tex]
O 1 i 4/5 kg
Obliczenia:
[tex]4\dfrac{1}{5}-2\dfrac{2}{5}=3\dfrac{1+5}{5}-2\dfrac{2}{5}=3\dfrac{6}{5}-2\dfrac{2}{5}=\boxed{1\frac{4}{5} \ [ \ \text{kg} \ ]}\\[/tex]
Odp. Dynia jest cięższa od arbuza o 1 i 4/5 kg.