Question

.If you dye 1/3 of it blue, ¼ pink and 2/5 black, how much of your original hair colour is left?

Answer 1

You have 1/60 of the original hair color left

Explanation:

Add up the fractions

1/3 + 1/4 + 2/5

Get a common denominator of 60

1/3 * 20/20 + 1/4 * 15/15 + 2/5 * 12/12

20/60 + 15/60 + 24/60

59/60

The total is 1 or 60/60

60/60 - 59/60

1/60

You have 1/60 of the original hair color left