Answer:
[tex]\frac{4}{21}[/tex]
Step-by-step explanation:
When simplifying fractions, you need to find the biggest common factor between the numerator (12) and denominator (63). In this case, the biggest common factor is 3.
Thus:
Numerator = 12 ÷ 3
= 4
Denominator = 63 ÷ 3
= 21
[tex]\frac{12}{63}[/tex] = [tex]\frac{4}{21}[/tex]