Question

(1 7/15 +2.4): 2 1/14 =

Answer 1

$(1 \frac{7}{15} + 2,4): 2\frac{1}{14} = ( \frac{22}{15} + \frac{24}{10} ): 2\frac{1}{14} = \\ = \frac{22*2+ 24*3}{30} : 2\frac{1}{14} = \frac{44+ 72}{30} : 2\frac{1}{14} = \\ = \frac{116}{30} : \frac{29}{14} = \frac{116}{30} * \frac{14}{29} = \\ = \frac{116*14}{30*29} = \frac{4*7}{15*1} =\frac{28}{15} = 1\frac{13}{15}$

Answer 2

$(1 \frac{7}{15} +2.4):2 \frac{1}{14}=1 \frac{13}{15} \\ \\1)1 \frac{7}{15} +2 \frac{4}{10} =1 \frac{7}{15} +2 \frac{2}{5} =1 \frac{7}{15} +2 \frac{2*3}{5*3} =1 \frac{7}{15} +2 \frac{6}{15} = \\ \\=3 \frac{13}{15} \\\\2) \frac{58*14}{15*29} = \frac{2*14}{15} = \frac{28}{15} =1 \frac{13}{15}$