Question

o intrebare simpla cine rasp primul ii dau o multumire si 5 stele{45 de puncte e intrebarea:)}
420 redus la 15 procente

Answer 1

$420 \times 15\% \\ = 420 \times \frac{15}{100} \\ = 420 \times \frac{3}{20} \\ = 21 \times 3 \\ = 63$

Answer 2

420:100=4,2 (1%)
4,2x15=63
Succes!