Question

ajutatima va rog,de la punctul f pina la l
va rog

Answer 1

$f) \frac{1}{4} + \frac{5}{7} = \ 7/_\frac{1}{4} + \ 4/_\frac{5}{7} = \frac{7}{28} + \frac{20}{28} = \frac{27}{28} \\ g) \frac{1}{3} + \frac{1}{5} = \ 5/_\frac{1}{3} + \ 3/_\frac{1}{5} = \frac{5}{15} + \frac{3}{15} = \frac{8}{15} \\ h) \frac{2}{7} + \frac{3}{8} = \ 8/_\frac{2}{7} + \ 7/_\frac{3}{8} = \frac{16}{56} + \frac{21}{56} = \frac{37}{56} \\ j) \frac{13}{8} + \frac{5}{12} = 12/_{\frac{13}{8}} + 8/_{\frac{5}{12}} = \frac{156}{96} + \frac{40}{96} = \frac{196}{96}/^{4} = \frac{49}{24} \\ k)\frac{7}{18} +\frac{2}{15} =\ 15/_\frac{7}{18} +\ 18/_\frac{2}{15} =\frac{105}{270} +\frac{36}{270} =\frac{141}{270}/^{3} =\frac{47}{90} \\ l)\frac{5}{6} +\frac{3}{4} =\ 4/_\frac{5}{6} +\ 6/_\frac{3}{4} =\frac{20}{24} +\frac{18}{24} =\frac{38}{24}/^{2} =\frac{19}{12}$

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