louis and valentina have 60 toys to build louis builds 1/2of the toys while valentina builds 2/5 how many toys are left

6

Step-by-step explanation:

1/2 = 0.5

2/5 = 0.4

60 * 0.5 = 30

60 * 0.4 = 24

30 + 24 = 54

60 - 54 = 6

6

Step-by-step explanation:

Louis build 1/2 of the toy and the total of the toy is 60

Which means

1/2*60=30

Valentina build 2/5 toy

2/5*60

120/5

24

So to determine the amount left

It will be

Total - (Louis+Valentina)

60 - (30+24)

60 - (54)

60-54

6

So the amount left is 6