Question

A1 supra 3 plus 7 supra 3 b 9 supra 4 plus 3 supra 4 c 5 supra 11 plus 6 supra 11 D 8 supra 9 minus 5 supra 9 e 1 supra 12 plus 1 supra 4 plus 1 supra 36 f 5 supra 28 plus 3 supra 14​

Answer 1

Răspuns:

a)  $\frac{8}{3}$

b) 3

c) 1

d) $\frac{1}{3}$

e)  $\frac{13}{36}$

f) $\frac{11}{28}$

Explicație pas cu pas:

a)  $\frac{1}{3} + \frac{7}{3} = \frac{1+7}{3} = \frac{8}{3}$

b) $\frac{9}{4} + \frac{3}{4} = \frac{9+3}{4} = \frac{12}{4} = 3$

c) $\frac{5}{11} + \frac{6}{11} = \frac{5+6}{11} = \frac{11}{11} = 1$

d) $\frac{8}{9} - \frac{5}{9} = \frac{8-5}{9} = \frac{3}{9} = \frac{1}{3}$

e) $\frac{1}{12} + \frac{1}{4} + \frac{1}{36} = \frac{1*3}{36} + \frac{1*9}{36} + \frac{1}{36} = \frac{3+9+1}{36} = \frac{13}{36}$

f) $\frac{5}{28} + \frac{3}{14} = \frac{5}{28} + \frac{3*2}{28} = \frac{5+6}{28} = \frac{11}{28}$