Help with proportional fractions

Answer 1

The important thing to know is the following. If you have an equality relating two fractions, for example:

1/2 = 3/6,

then the numerator of one fraction times the denominator of the second is the same as the numerator of the second times the denominator of the first. In this example, 1 x 6 = 2 x 3. This can often be used to solve problems. For example, a typical question with percentages is, "20 is 15% of...?" Writing this as a proportion, and remembering that percent means hundredths:

20/x = 15/100

Now just solve for x. 15x = 20 times 100, 15x = 2000, x = 166.67.

The important thing to know is the following. If you have an equality relating two fractions, for example:

1/2 = 3/6,

then the numerator of one fraction times the denominator of the second is the same as the numerator of the second times the denominator of the first. In this example, 1 x 6 = 2 x 3. This can often be used to solve problems. For example, a typical question with percentages is, "20 is 15% of...?" Writing this as a proportion, and remembering that percent means hundredths:

20/x = 15/100

Now just solve for x. 15x = 20 times 100, 15x = 2000, x = 166.67.

The important thing to know is the following. If you have an equality relating two fractions, for example:

1/2 = 3/6,

then the numerator of one fraction times the denominator of the second is the same as the numerator of the second times the denominator of the first. In this example, 1 x 6 = 2 x 3. This can often be used to solve problems. For example, a typical question with percentages is, "20 is 15% of...?" Writing this as a proportion, and remembering that percent means hundredths:

20/x = 15/100

Now just solve for x. 15x = 20 times 100, 15x = 2000, x = 166.67.

The important thing to know is the following. If you have an equality relating two fractions, for example:

1/2 = 3/6,

then the numerator of one fraction times the denominator of the second is the same as the numerator of the second times the denominator of the first. In this example, 1 x 6 = 2 x 3. This can often be used to solve problems. For example, a typical question with percentages is, "20 is 15% of...?" Writing this as a proportion, and remembering that percent means hundredths:

20/x = 15/100

Now just solve for x. 15x = 20 times 100, 15x = 2000, x = 166.67.

Answer 2

The important thing to know is the following. If you have an equality relating two fractions, for example:

1/2 = 3/6,

then the numerator of one fraction times the denominator of the second is the same as the numerator of the second times the denominator of the first. In this example, 1 x 6 = 2 x 3. This can often be used to solve problems. For example, a typical question with percentages is, "20 is 15% of...?" Writing this as a proportion, and remembering that percent means hundredths:

20/x = 15/100

Now just solve for x. 15x = 20 times 100, 15x = 2000, x = 166.67.