Checking whether fractions are equivalent

Let’s take an example

Check whether 1/2 , 128/256 are equivalent .

To check,

  we make both fractions equal.

  1/2 = 128/256

And then cross multiply

1 × 256 = 128 × 2

      256 = 256

Since this is true

  1/2, 128/256 are equivalent

Check whether 1/ 3 , 99 /2 97 are equivalent.

To check,

  we make both fractions equal.

    1/3 = 99/297

And then cross multiply

1 × 297 = 99 × 3

      297 = 297

Since this is true

  1/2, 99/297 are equivalent

Check whether 4 / 5 , 28 / 35 are equivalent.

To check,

  we make both fractions equal.

  4/5 = 28/35

And then cross multiply

4 × 35 = 28 × 5

    140 = 140

Since this is true.

  4/5, 28/35 are equivalent.