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.