Question

Step by step explaination of 1/5 : 1/10 : 1/15

Answer 1

Step-by-step explanation:

We must first find the LCD (Least Common Denominator). In this situation, let's try putting the number 40 in the denominator of each given fraction:

14⋅1010=1040

15⋅88=840

110⋅44=440

Next, we add all the above fractions with the LCD (40):

10+8+440=2240=1120

Notice that we could have used the number 20 as the LCD, from the very beginning, instead of 40. However the final answer is correct nonetheless.