maklovesmj maklovesmj

22-12-2017
Mathematics

contestada

3 4/9 +5 1/3

11 1/5 +2 1/2 7

4/5 + 1 9/10

10 3/4 + 15 1/3

7 1/2 +6 1/3

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choixongdong choixongdong

22-12-2017

3 4/9 + 5 1/3
= 3 4/9 + 5 3/9
= 8 7/9

11 1/5 + 2 1/2
= 11 2/10 + 2 5/10
= 13 7/10

7 4/5 + 1 9/10
= 7 8/10 + 1 9/10
= 8 17/10
= 9 7/10

10 3/4 + 15 1/3
= 10 9/12 + 15 4/12
= 25 13/12
= 26 1/12

7 1/2 + 6 1/3
= 7 3/6 + 6 2/6
= 13 5/6

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