Question

write 18/5 as a fraction with nemerator 90

Answer 1

18/5
multiply by 5 on both side.
then 18x5/5x5
90/25

Answer 2

Step-by-step explanation:

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:

90 = 2 × 32 × 5

18 = 2 × 32

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 × 32 × 5; 2 × 32) = 2 × 32

Calculate the greatest common factor, GCF, online calculator

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

90/18 =

(2 × 32 × 5)/(2 × 32) =

((2 × 32 × 5) ÷ (2 × 32)) / ((2 × 32) ÷ (2 × 32)) =

5/1 =

5