Answer to Question #116638 in Algebra for Rico

Question

Three sisters, Mimi, Alison and Tracy decide to buy a house. Mimi pays

1

_

3

of the cost, Alisa pays

2

_

5

of

the cost and Tracy pays the rest.

2.2.1 What fraction of the cost of the house does Tracy pay? [2]

Answer 1

Mimi pays 1/3, Alisa pays 2/5

they both pay 1/3+2/5=(5+6)/15

Tracy pays the remaining fraction, 1-11/15=4/15

Tracy pays 4/15 of the cost of the house.