Question

Step by step answer please​

Answer 1

Answer:

1. 13.25-5.75=7.5 = 7.5+5.75=13.25
2. 89.1÷60=1.485 is the distance covered in 1hour
3. 1 7/9+1 9/7=16/9+16/7=lcm of 9&7= 63

16/63+16/63=32/63

reciprocal = 63/32

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Answer 2

Answer:

the above one absolutely correct