Question

(15/16 - 2,25) × 0,16 - 0,42 ÷ 0,4 = 1) 2) 3) 4)

Answer 1

Ответ:

Пошаговое объяснение:

1) 15/16 - 2,25 = 0,9375 - 2,25 = -1,3125

2) -1,3125 * 0,16 = -0,21

3) 0,42 : 0,4 = 1,05

4) -0,21 - 1,05 = -1,26

Answer 2

Пошаговое объяснение:

(15/16-2,25)×0,16-0,42:0,4=

1) 15/16-2,25=0,9375-2,25= - 1,3125

2) - 1,3125×0,16= - 0,21

3) 0,42:0,4=1,05

4) -0,21-1,05= - 1,26

Answer 3

Let's solve the expression step by step:

1. Calculate 15/16 - 2.25: 15/16 - 2.25 = (15/16) - (36/16) = (-21/16)

2. Multiply the result by 0.16: (-21/16) * 0.16 = -21/256

3. Divide 0.42 by 0.4: 0.42 / 0.4 = 1.05

4. Now, subtract the result from step 2 from the result in step 3: 1.05 - (-21/256) = 1.05 + 21/256

To simplify the final result, you can convert 1.05 to a fraction with the same denominator as 256:

1.05 = 256/256 * 1.05 = 268.8/256

Now, add this to 21/256:

268.8/256 + 21/256 = (268.8 + 21) / 256 = 289.8/256

This is the final result. To simplify it further, you can reduce the fraction:

289.8/256 = 1449/1280

So, the answer is 1449/1280.