Question

Calculați
2•2intreg1/2•3,14

Answer 1

Raspuns:

15,7

Explicație pas cu pas:

2×2 intregi 1/2=2×5/2×3,14=2×5/2×157/50=5×157/50=157/10=15,7

Answer 2

Răspuns:

$2 \times 2 \frac{1}{2} \times 3.14 \\ 2 \times \frac{5}{2} \times \frac{314}{100} \\ \frac{10}{2} \times \frac{314}{100} \\ \frac{3140}{200} \\ simplificam \: cu \: 20 \\ \frac{157}{10}$