26. a. Show that the ratios Start Fraction 10 over 20 End Fraction and Start Fraction 30 over 60 End Fraction form a proportion by finding a common multiplier.

b. Show that the ratios in part (a) are equal by writing them in simplest form.

9 answers

10/20
30/60

Divide both numerators and denominators by 10

1/2 = 3/6

3/6 and be simplified by dividing numerator and denominator by 3.

1/2 = 1/2
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