Question

2 intregi si 2/3 +15/7*14/9

Answer 1

$2 \frac{2}{3} + \frac{15}{7} \times \frac{14}{9} = \frac{8}{3} + \frac{10}{3} = \frac{18}{3} = 6$

Answer 2

→ introducem intregii in fractie

2 intregi si 2 / 3 = ( 2 x 3 + 2 ) / 3 = 8 / 3

8 / 3 +( 15 / 7 ) × ( 14 / 9) = 6

= 8 / 3 + ( 15 × 14 ) / ( 7 × 9 ) = →simplific pe 15 si pe 9 cu 3; iar pe 14 cu 7

= 8 / 3 + ( 5 × 2 ) / 3 =

= 8 / 3 + 10 / 3 =

= 18 / 3 =

= 6