Question

Ajutorrrrrrrrrrrrrrrrrrrrrrr! !!!!!Îmi puteti rezolva ,va rog,puncturile c si d de la ex.1!
P.S.Sa nu îmi spuneti direct rezultatul!

Answer 1

3*$( \frac{5}{10} + \frac{3}{100} + \frac{6}{25}) =2* \frac{50+3+24}{100} =2* \frac{77}{100} = \frac{77}{50}$$3*( \frac{1}{10} + \frac{5}{100} + \frac{17}{10} )= 3* ( \frac{1}{10} + \frac{1}{20} + \frac{17}{10} )= 3* \frac{2+1+37}{20} = 3* \frac{37}{20} = \frac{111}{20}$

$2*( \frac{5}{10} + \frac{3}{100} + \frac{24}{100} =2*( \frac{1}{2} + \frac{3}{100} + \frac{6}{25})=2* \frac{50+3+24}{100} =2* \frac{77}{100} = \frac{77}{50}$