I don't know how to Order 1/2,3/5,4/10 from greatest to least

Answer: 4/10, 1/2, and 3/5

Step-by-step explanation: You would first want to find the LCD (Least Common Denominator) for all fractions.

4/10 is 4/10. 3/5 is 6/10. And 1/2 is 5/10. The amount of times you multiply the denominator the amount you multiply the numerator.

Then lastly. You list them by the numerator in order to get the answers:

4/10, 1/2, and 3/5 OR 4/10, 5/10, and 6/10.

Convert to decimals.

3/5=.6

1/2=.5

4/10=.4