Question

(-4/15+1,18-5/7)+1 3/14+(-1,68+2 4/15)(числа записанные через «/»—это дроби)​

Answer 1

Ответ:2

Пошаговое объяснение:

(-4/15+1.18-5/7)+1.3/14+(-1.68+2.4/15)=-4/15+1.18-5/7+1.3/14-1.68+2.4/15=2+0.5-0.5=2

Answer 2

To simplify the expression, let's first perform the operations step by step:

Step 1: Simplify each fraction. -4/15 + 1 = -4/15 + 15/15 = (15 - 4) / 15 = 11/15

1 18/5 - 5/7 = 23/5 - 5/7 To add these fractions, we need a common denominator, which is 35. (23/5) * (7/7) = 161/35 (5/7) * (5/5) = 25/35

Now, the expression becomes: (161/35) - (25/35) = (161 - 25) / 35 = 136/35

1 3/14 + (-1 68/15) To add these fractions, we need a common denominator, which is 210. (3/14) * (15/15) = 45/210 (-68/15) * (14/14) = -952/210

Now, the expression becomes: (210/210) + (45/210) + (-952/210) = (210 + 45 - 952) / 210 = -697/210

Step 2: Perform the final addition.

Now, the expression becomes: 11/15 + 136/35 + (-697/210)

To add these fractions, we need a common denominator, which is 210. (11/15) * (14/14) = 154/210 (136/35) * (6/6) = 816/210

Now, the expression becomes: (154/210) + (816/210) + (-697/210) = (154 + 816 - 697) / 210 = 273/210

Step 3: Simplify the fraction.

The fraction 273/210 can be simplified by dividing both the numerator and denominator by their greatest common divisor (GCD), which is 3.

273 ÷ 3 = 91 210 ÷ 3 = 70

So, the final result is: 91/70