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How do you know 31/40 is greater than 3/4, but less than 4/5


User Rafaelpadu
by
5.3k points

2 Answers

11 votes

Explanation:

So you have 31/40

3/4=30/40 (multiply by 10/10)

4/5=32/40 (multiply by 8/8)

So, there you have it, 31/40 is right in between those two.

turn it into decimal format. just do the division,. 31 divided by 40 = .775 and 3 divided by 4 = .75 and 4 divided by 5 = .8. all you have to do is the division and once it is in decimal format you can tell which is greater. hope this helps

User Candino
by
5.5k points
6 votes

9514 1404 393

Answer:

30/40 < 31/40 < 32/40

Explanation:

The fractions are easiest to compare when they have a common denominator. A denominator of 40 will serve.

3/4 = 30/40

4/5 = 32/40

Then the relation between the fractions is ...

30/40 < 31/40 < 32/40

3/4 < 31/40 < 4/5 . . . . 31/40 is greater than 3/4 and less than 4/5

_____

You can also compare the numbers as decimals.

3/4 = 0.750

31/40 = 0.775 . . . . greater than 3/4

4/5 = 0.800 . . . . greater than 31/40

User Paulo Roberto
by
5.6k points