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March 3, 2015

March 3, 2015

Posted by **Karianne** on Tuesday, April 7, 2009 at 4:14pm.

1. Ian and his dad went fishing they took 81 fleas along as bait. when they returned home 1/9 were left how many sand flea did they use? She came up with 72 as her answer(she divided 81 by 9 =9 then subtracted it from 81. Is this correct?

2. It took 20 minutes to dig the sand fleas. they got 7/9 in the last 8 minutes. How many in the first 12 minutes? She was thinking she needed to divide 81 by 9 and then multiply the 7 by 9? She got me confused, any help is much appreciated.

- fractions -
**bobpursley**, Tuesday, April 7, 2009 at 5:27pmThe first:

left=81/9=9 fleas left

so they used....81-9

she did it correctly. Good.

Now on the second.

in the last 8 min they got (7/9 * 81)=63

so in 12 min, they must have got the rest, 81-63

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