Question

Calculează: 5/6-4/9=?,5/4+10/9=?,23/5+7/10=?,22/3-4/3=?​

Answer 1

$\frac{5}{6} - \frac{4}{9} = \frac{15}{18} - \frac{8}{18} = \frac{15 - 8}{18} = \frac{7}{18}$

$\frac{5}{4} - \frac{10}{9} = \frac{45}{36} - \frac{40}{36} = \frac{45 - 40}{36} = \frac{5}{36}$

$\frac{23}{5} - \frac{7}{10} = \frac{46}{10} - \frac{7}{10} = \frac{39}{10}$

$\frac{22}{3} - \frac{4}{3} = \frac{22 - 4}{3} = \frac{18}{3} = 6$

Answer 2

Răspuns:

Explicație pas cu pas:

"/" - fractie

5/6 - 4/9 = 15/18 - 8/18 = 7/18

5/4 + 10/9 = (45+40)/36 = 85/36

23/5 + 7/10 = (46+7)/10 = 53/10

22/3 - 4/3 = (22-4)/3 = 18/3 = 6