Question

Que son los "like numbers" y "unlike numbers" y cuando se escribe el numero en lugar de el signo?
por ejemplo: There were only 12 people in the group (like numbers)
We arrived at the museum and stayed for three hours (unlike numbers)

Answer 1

LIKE NUMBERS: 1/2 or 3/4 
UNLIKE NUMBERS: 3*3/5-4*6/8