Question

20*1/4+10*1/5 помогите пожалуйста ..........,...................

Answer 1

5 + 2 = 7...............

Answer 2

$20 times frac{1}{4} + 10 times frac{1}{5} = 20 times 0.25 + 10 times 0.2 = 5 + 2 = 7$