# 5th grade math (word problems)

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Can you explain how to do the following problems?

1. Order these fractions from Greatest to least. 3/12, 5/8, 1/4, 7/8, 4/16

work: find least common denominator
3/12 = 12/48, 5/8 = 30/48, 1/4 = 12/48, 7/8 = 42/48

answer = 7/8, 5/8, since 3/12 and 1/4 are the same, which would be greater?

2.Kelsie worked 172 minutes on homework this week. Her teacher estimates it should take 2 3/4 hours for the work. How much more or less did Kelsie work?

work: 172/60 = 2.86 hours
2.86 - 2.75 = 11 minutes less?

3. A line plot shows 10 beakers measured in Liters. If the liquid is distributed evenly, how much liquid is in each beaker if total liquid is 3 7/8 (three & seven eighths)Liters?

work: (3 7/8)/10 = (3 7/8 * 1/10) = 31/80 = .3875

• 5th grade math (word problems) -

1. is correct. It doesn't make any difference which 1/4 you put first.

2. I get that Kelsie worked about 7 minutes more.
2.87 - 2.75 = 0.12 hour = 7.2 minutes

3. is correct.

• 5th grade math (word problems) -

Thanks! I see what I did wrong for #2.

• 5th grade math (word problems) -

You're welcome.

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