Решите подробно подробноо

Question

Решите подробно подробноо

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Answer 1

1.
12/13-7/13=5/13

2.
5 2/7=37/7

3.
3 1/7-1 2/7-1 3/7+4 5/7=22/7-9/7-10/7+33/7=36/7=5 1/7

4.
13/17+х-2/17=14/17
х=14/17-13/17+2/17
х=3/17

5.
4 1/11+х+2 3/11=7 9/11
45/11+х+25/11=86/11
х=86/11-45/11-25/11
х=16/11=1 5/11