43.7k views
10 votes
Find the missing number to make these fractions equal.
4/5=12/ what

2 Answers

5 votes

Answer:

15

Explanation:

let
{x} be the unknown denominator.

therefore,


(4)/(5)=(12)/(x)

cross multiply

4
{x\\} = 12×5


{x} = (12)/(4) ×5


{x} = 3 × 5


{x} = 15

therefore the missing number is 15

User SatheeshJM
by
8.1k points
13 votes

Answer:

12/15

Explanation:

To find the answer to this question, we first need to align the numerators and find what multiplies by 4 to get 12.

This is achieved by dividing 12 by 4.

12 / 4 = 3

Now, we need to multiply 3 by the denominator (5) to get the missing denominator of the second fraction.

5 * 3 = 15 --> (Denominator)

Inputting the denominator into the second fraction, we have the fraction:

12/15

User Fatboy
by
8.5k points

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