Question

1/3 part of the stick was coloured red and 1/5 of the stick was coloured green and the remaining part was coloured blue. Find the part of the stick was coloured blue



Please help me fast!​

Answer 1

Equalizing the denominator

1×5/3×5 = 5/15

1×3/5×3 = 3/15

Remaining part = (5/15+3/15)-15/15 = 7/15

7/15 part was blue