Question

1/2=( )/( )+( )/( )+( )/( ),答案我有,但我想知道方法

Answer 1

1/2=( 1)/(3 )+(1 )/(7 )+(1 )/( 42),

1/2=1/3+1/6

1/6=(1+6)/6*(1+6)=1/42+6/42=1/42+1/7