Question

A can do a work in 15 days and B in 9 days. If they work on it together for 5 days, then what fraction of work is left?

A) 1/6 B) 3/7 C) 1/3 D) 1/9

Answer 1

Answer:

3/7

Step-by-step explanation:

Answer 2

Step-by-step explanation:

L.C.M of 15 and 9 =45

45/15 =3 , 45/9=5

3+8=8

5×8=40

45-40=5

5/45=1/9