Question

Change 30/42 into
an equivalent fraction with numerator 5​

Answer 1

Answer:

Step-by-step explanation:

30 = 2 × 3 × 5

42 = 2 × 3 × 7

Calculate the prime factors of numbers, online calculator

Calculate the greatest common factor, GCF:

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

gcf (2 × 3 × 5; 2 × 3 × 7) = 2 × 3

Calculate the greatest common factor, GCF, online calculator

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

30/42 =

(2 × 3 × 5)/(2 × 3 × 7) =

((2 × 3 × 5) ÷ (2 × 3)) / ((2 × 3 × 7) ÷ (2 × 3)) =

5/7

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