Question

VA ROG DIN SUFLET!!!DAU COROANA!!! Cum se rezolva punctele f),g),h) ?

Answer 1

f)  ( 34 a + 34 b ) /  ( 51 a + 51 b ) = 34 ( a + b ) / 51 ( a + b ) = 34 / 51

g)  (2³ x 3⁴ x 5² ) / ( 2² x 3⁶ x 7 ) =( 2 x 5² ) / ( 3² x 7 ) = (2 x 25 ) / ( 9 x 7 ) = 50 / 63

h)   ( 2 x 11² x 13³ ) / ( 7 x 11³ x 13² ) = ( 2 x 13 ) / ( 7 x 11 ) = 26 / 77

Answer 2

$f) \frac{34a + 34b}{51a + 51b} = \frac{34(a + b)}{51(a + b)} = \frac{34}{51} = \frac{2}{3}$

$g) \frac{ {2}^{3} \times {3}^{4} \times {5}^{2} }{ {2}^{2} \times {3}^{6} \times 7 } = \frac{ {2}^{3} \times {3}^{4} \times 25 }{ {2}^{2} \times {3}^{6} \times 7 } = {2}^{3 - 2} \times {3}^{4 - 6} \times 25 \times {7}^{ - 1} = {2}^{1} \times {3}^{ - 2} \times 25 \times {7}^{ - 1} = 2 \times {3}^{ - 2} \times 25 \times {7}^{ - 1} = 2 \times \frac{1}{ {3}^{2} } \times 25 \times {7}^{ - 1} = 2 \times \frac{1}{9} \times 25 \times {7}^{ - 1} = 2 \times \frac{1}{9} \times 25 \times \frac{1}{7} = \frac{2 \times 1 \times 25 \times 1}{9 \times 7} = \frac{50}{63}$