Question

Efectuati: 3*1/4 , 12*5/4

Answer 1

3*1/4 Adica 3/4

 12*5/4 = 
60/4=15

SAU

simplificam 12 cu 4 si ramane 3*5=15

Answer 2

$3X \frac{1}{4} = \frac{3}{4}$


$12X \frac{5}{4} = \frac{60}{4} =15$