Question

Simran painted 2/3 of the wall space in her room. Her brother Rahul helped her paint 1 5 of the wall space. How much did they paint together? What part of the whole space is left unpainted?

Answer 1

Answer: 13/15 and 2/15

Step-by-step explanation:

Painted wall = 2/3 +1/5 = (2x5 + 1x3)/(3x5)= (10+3)/15 = 13/15

Unpainted wall = 1 - 13/15 = (15-13)/15 = 2/15

Answer 2

Given - Wall painted by Simran = 2/3

Wall painted by Rahul = 1/5

Find - Spaced painted together and space left unpainted

Solution - Total space of the room painted = 2/3 + 1/5

Taking L.C.M. of the fraction. L.C.M. will be

Total space of the room painted = 2*5 + 1*3/15

Total space of the room painted = 10 + 3/15

Total space of the room painted = 13/15

Space left unpainted = 1 - 13/15

Space left unpainted = 15 - 13/15

Space left unpainted = 2/15

Therefore, together painted space is 13/15 and the space left unpainted is 2/15.