How do you work out 2/5 of 10

This is an example of multiplication of fractions.
2/5 of 10 means (2/5)*10. It can also be written as (2/5)*(10/1)In order to multiply fractions, just multiply the numerators which are 2 and 10 and the product is 20. And multiply also the denominators which are 5 and 1 and the product is 5. The result would be written as 20/5. The final answer should be written in simplified form which is 4.
Solution: (2/5)*10 = (2/5)*(10/1) = 20/5 = 4

 The unknown is rather the question of how many hours the taxi drove. We can give it the symbol X.

Your equation would be: 40x + 30 = 150

(SOLVED):
40x +30(-30) = 150(-30)
40x= 120
40/40=120/40
x=3

*The driver drove the passenger for 3 total hours*

Hope this was helpful to you! Have a good one.