Numerator = Top part, Denominator = Bottom part of the fraction
Multiply numerator and denominator with a number such that denominator becomes LCM of all the denominators.
Example, 2/3 , 4/7, 1/9
Step1) Take LCM of all the denominator, ie 3,7 and 9. LCM= 63
Step2) Divide 63 by all the denominators and multiply the result with its corresponding numerator
63/3 = 21 => 2*21 =42
63/7=9 => 4*9=36
63/9=7=> 1*7=7
So the Equivalent fractions are
42/63 , 36/63 and 7/63