Question

ajutatima repede dau coroana

Answer 1

a. 6 pe 7
b. 5 pe 8
c. 10 pe 11
d.56 pe 100
e. 22 pe 25
f. 75 pe 75
g. 22 pe 22
h. 22 pe 22
j. 10 pe n
k. 9a pe b

"pe" inseamna linie de fractie.

Answer 2

$a) \frac{4}{2} + \frac{2}{7} = \frac{4 + 2}{7} = \frac{6}{7} \\ \\ b) \frac{3}{8} + \frac{2}{8} = \frac{3 + 2}{8} = \frac{5}{8} \\ \\ c) \frac{7}{11} + \frac{3}{11} = \frac{7 + 3}{11} = \frac{10}{11} \\ \\ d) \frac{19}{100} + \frac{37}{100} = \frac{19 + 37}{100} = \frac{56}{100} \\ \\ e) \frac{11}{25} + \frac{2}{25} + \frac{9}{25} = \frac{11 + 2 + 9}{25} = \frac{22}{25} \\ \\ f) \frac{32}{75} + \frac{29}{75} + \frac{14}{75} = \frac{32 + 29 + 14}{75} = \frac{75}{75} \\ \\ g) \frac{4}{22} + \frac{5}{22} + \frac{6}{22} + \frac{7}{22} = \frac{4 + 5 + 6 + 7}{22} = \frac{22}{22} \\ \\ j) \frac{2}{n} + \frac{3}{n} + \frac{5}{n} = \frac{2 + 3 + 5}{n} = \frac{10}{n} \\ \\ k) \frac{a}{b} + \frac{3a}{b} + \frac{5a}{b} = \frac{a + 3a}{b} + \frac{5a}{b} = \frac{4a}{b} + \frac{5a}{b} = \frac{4a + 5a}{b} = \frac{9a}{b}$