Question

21/63 in change 2 eqvelent fraction​

Answer 1

Answer:

21/63=1/3

1/3=1/3×2/2=2/6

1/3=1/3×3/3=3/9

Answer 2

Answer:

To reduce a fraction divide the numerator and the denominator by their greatest common factor, GCF

Factor both the numerator and the denominator, break them down to prime factors:

in the notation with exponents:

21 = 3 × 7

63 = 32 × 7

Step-by-step explanation:

Calculate the greatest common factor, GCF:

Multiply all the common prime factors, by the lowest exponents.

gcf (3 × 7; 32 × 7) = 3 × 7

Calculate the greatest common factor, GCF, online calculator

Divide both the numerator and the denominator by their greatest common factor, GCF:

21/63 =

(3 × 7)/(32 × 7) =

((3 × 7) ÷ (3 × 7)) / ((32 × 7) ÷ (3 × 7)) =

1/3