Respuesta :
The number of grandchildren that Eva has is 21.
What is a fraction?
A fraction is a quantity that is not a whole number. In maths, a fraction usually has a numerator and a denominator. An example of a fraction is 2/7. 2 is the numerator and 7 is the denominator.
What fraction of the grandchildren live in Australia?
In order to determine the fraction of the grandchildren that live in Australia, subtract the fraction of the grandchildren that live in Wales from 1.
1 - 2/7 = 5/7
How many grandchildren does Eva have?
Number of grandchildren = 15 ÷ 5/7
15 x 7/5 = 21
To learn more fractions, please check: https://brainly.com/question/25779356
