Probability of a coin homework question

[Awoilf3]

I have tried to divide the number of flips by the number of heads but that hasn't given me an answer that makes sense.

Here is the question:

Eman and Sarah are testing whether a coin is biased or not.
The results are shown below in the table.

	No. of heads	No. of flips
Eman	37	60
Sarah	411	840

Work out:

1. Eman's estimate for the probability of getting a head.
2. Sarah's estimate for the probability of getting a head.

 

[Romsek]

divide the number of heads by the number of flips.

 

[Steven G]

(favorable number of flips)/(total number of flips) = (number of heads)/(total number of flips)