Question

2,4 inmultit 7 pe 15 plus 0,3 inmultit 2 intregi si 1pe 3-0,5 :3 pe 4

Answer 1

$2,4* \frac{7}{15} +0,3*2 \frac{1}{3}-0,5: \frac{3}{4}= \frac{24}{10}* \frac{7}{15}+ \frac{3}{10}* \frac{7}{3}- \frac{5}{10}* \frac{4}{3}= \frac{28}{25}+ \frac{7}{10} -\\ - \frac{2}{3}= \frac{840+525-500}{750}= \frac{865}{750}= \frac{173}{150} = 1 \frac{23}{150}$
865/750 - am simplificat cu 5