Question

15 (1 + 1/3 - 1/5) ​

Answer 1

Ответ:

1+1/3=4/3

4/3-1/5=12/15-3/15=9/15

15*9/15=15/1*9/15=9/1=9

Answer 2

To calculate the expression 15 * (1 + 1/3 - 1/5), you should follow the order of operations, which is parentheses first, then multiplication and division from left to right, and finally addition and subtraction from left to right:

1. Start with the parentheses: 1 + 1/3 - 1/5 = (15/15) + (5/15) - (3/15)

2. Add and subtract the fractions: (15/15 + 5/15 - 3/15) = (17/15) - (3/15)

3. Now, subtract the fractions: (17/15) - (3/15) = (17 - 3) / 15 = 14/15

4. Finally, multiply the result by 15: 15 * (14/15) = 14

So, 15 * (1 + 1/3 - 1/5) equals 14.