Question

( \frac{5}{12} + \frac{7}{18} ) : 0,29-0,(7)
p.s (unde e frec e fractie)

Answer 1

(5/12+7/18):0,29-0,(7)=
=(15+14/36)x100/29-7/9=
=29/36 x 100/29-7/9=
=100/36 -7/9=
=25/9 -7/9=
=18/9=2

Answer 2

$( \frac{5}{12} + \frac{7}{18} ):0,29-0,(7)=( \frac{15}{36} + \frac{14}{36} ): \frac{29}{100} - \frac{7}{9} = \\ \\ = \frac{29}{36} \cdot \frac{100}{29} - \frac{7}{9} = \frac{2900}{1044} - \frac{7}{9} = \frac{2900}{1044} - \frac{812}{1044} = \frac{2088}{1044} =2$