Posted by **p** on Friday, September 18, 2009 at 8:54pm.

please check my answers

1.which is smallest 5/8,3/4,9/16,7/8 =9/16

2.subtract 6 3/10-4 11/15=1 17/30

3.estimate 6 1/8* 7 4/5=48

4.lcm of 20,32=160

jon spent 1/3 of his study time doing math and 2/7 preparing for history exam. what fraction of his study time remains? = 8/21

5.lcm of 10,15,25=150

6. add 3/11+9/11+1/11=1 2/11

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