1)(4 5/4+1 6/11)-6/11
1 6/11-6/11=1
4 5/4+1=5 5/4=6 1/4
2)(12 19/24+5 19/28)-3 19/24
12 19/24-3 19/24=9
9+5 19/28=14 19/28
3)10 5/14-(3 5/13+3 1/7)=10 5/14-3 5/13-3 1/7
10 5/14-3 1/7=10 5/14-3 2/14=7 3/14
7 3/14-3 5/13=7 39/182-3 70/182=33
31/182=32 151/182
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Answers & Comments
1)(4 5/4+1 6/11)-6/11
1 6/11-6/11=1
4 5/4+1=5 5/4=6 1/4
2)(12 19/24+5 19/28)-3 19/24
12 19/24-3 19/24=9
9+5 19/28=14 19/28
3)10 5/14-(3 5/13+3 1/7)=10 5/14-3 5/13-3 1/7
10 5/14-3 1/7=10 5/14-3 2/14=7 3/14
7 3/14-3 5/13=7 39/182-3 70/182=33
31/182=32 151/182