Răspuns:
1)
[tex]6 \frac{3}{8} \times 1 \frac{7}{17} = \frac{51}{8} \times \frac{24}{17} = \frac{51 \times 24}{8 \times 17} = \frac{1224}{136} [/tex]
2)
[tex]2 \frac{3}{8 } \div 1 \frac{1}{4} = \frac{19}{8} \div \frac{5}{4 } = \frac{19 \times 4}{8 \times 5} = \frac{76}{40} = \frac{19 \times 4}{10 \times 4} = 1 \frac{9}{10} [/tex]
3)
[tex]9 - 1 \frac{9}{10} = \frac{71}{10} = 7 \frac{1}{10} [/tex]
Explicație pas cu pas:
Răspunsul final :
[tex]7 \frac{1}{10} [/tex]
