Final answer:
To arrange the fractions from greatest to least, compare their numerical values. Convert them to decimals and order the fractions based on their decimal values.
Step-by-step explanation:
To arrange the fractions from greatest to least, you need to compare their numerical values. Let's look at each set of fractions:
3/4, 2/5, 3/5: To compare these fractions, we can convert them to decimals. 3/4 = 0.75, 2/5 = 0.4, 3/5 = 0.6. So, the order from greatest to least is 3/4, 3/5, 2/5.
6/6, 6/5, 6/4: These fractions are all equal to 1, so the order from greatest to least is 6/6, 6/5, 6/4.
1/7, 1/3, 1/5: Again, let's convert these fractions to decimals. 1/7 = 0.1429, 1/3 = 0.3333, 1/5 = 0.2. So, the order from greatest to least is 1/3, 1/5, 1/7.