Question

se efectuează va rog frumos​

Answer 1

Răspuns:

a)  $\frac{2}{5}+ \frac{3}{5} = \frac{5}{5} = 1$

b)  $\frac{7}{3}- \frac{4}{3} = \frac{3}{3} = 1$

c)  $\frac{3}{2} +\frac{5}{2} =\frac{8}{2} = 4$

d)  $\frac{7}{4}- \frac{1}{4} =\frac{6}{4}$

e)  $2\frac{1}{3} +3\frac{1}{3} = \frac{7}{3} +\frac{10}{3} =\frac{17}{3}$

f)   $\frac{1}{2}+ \frac{3}{2} +\frac{5}{2} -\frac{7}{2} = \frac{9}{2} -\frac{7}{2} = \frac{2}{2} = 1$

   $\frac{2}{15} -\frac{1}{15} +\frac{4}{15}+ \frac{7}{15} = \frac{12}{15}$

g)  $\frac{1}{8}+ \frac{2}{8}- \frac{3}{8}+ \frac{4}{8} +\frac{5}{8} - \frac{6}{8} + \frac{7}{8} = \frac{3}{8} - \frac{12}{8} - \frac{13}{8} =\frac{-22}{8}$

Sper ca te-am ajutat!