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umka21 [38]
2 years ago
15

Help me out please .

Mathematics
1 answer:
alex41 [277]2 years ago
6 0

The first one

Step-by-step explanation:

1/7 of 42 is 6

2/3 of 42 is 28

6+28=34

42-34=8

8/42=4/21

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