Butterfly Method for Fraction
Formulas :
Numerator = ( __ x __ ) − ( __ x __ )
Denominator = __ x __
Example :
3/4 - 2/5
Numerator = ( 3 × 5 ) − ( 2 × 4 )
= 7
Denominator = 5 × 4
= 20
So, 3/4 - 2/5 = 7/20
Formulas :
Numerator = ( __ x __ ) − ( __ x __ )
Denominator = __ x __
Example :
3/4 - 2/5
Numerator = ( 3 × 5 ) − ( 2 × 4 )
= 7
Denominator = 5 × 4
= 20
So, 3/4 - 2/5 = 7/20