Question

Calculati: b) 5 1/4:7/2=?,c) 3 1/2:14/6=?,d) 4/9:1 1/3=?, e) 11/7: 5 1/2=?,f) 3 1/4: 1 4/9=?​

Answer 1

Răspuns:

b) 1/4 : 7/2= 1/4 * 2/7= 1/14

c) 3$\frac{1}{2}$ : 14/6= 7/2  * 6/14 = 49/4

d) 4/9 : 11/3 = 4/9 * 3/11 = 4/33

e) 11/7 : 5$\frac{1}{2}$ = 11/7 * 11/2 = 121/4

f) 3 $\frac{1}{4}$ : 1 $\frac{4}{9}$ = 13/4 : 13/9 = 13/4 * 9/13 = 9/4

Explicatie:

3$\frac{1}{2}$ = $\frac{3 * 2 + 1}{2}$