Question

a:b=c:d to ma+nc/mb+nd=?​

Answer 1

Answer:

Hola‼....❤✌

a:b=c:d

or a/b=c/d………….(1)

or m.a/m.b=nc/nd

or ma/nc=mb/nd , on adding 1 both side

ma/nc + 1 = mb/nd + 1

or (ma+nc)/nc=(mb+nd)/nd

or (ma+nc)/(mb+nd) =nc/nd = c/d ,

Also c/d=a/b from eq.(1)

Therefore, (ma+nc)/(mb+nd) = c/d = a /b

Hope it's helpful.....☺