Question

7 42/90 - 16 80/90 полный ответ​

Answer 1

Пошаговое объяснение:

7 42/90-16 80/90= - 9 38/90= - 9 19/45

Answer 2

To subtract the two mixed numbers 7 42/90 and 16 80/90, you can follow these steps:

Step 1: Convert both mixed numbers to improper fractions.

7 42/90 as an improper fraction: = 7 + 42/90 = (7 * 90 + 42) / 90 = (630 + 42) / 90 = 672/90

16 80/90 as an improper fraction: = 16 + 80/90 = (16 * 90 + 80) / 90 = (1440 + 80) / 90 = 1520/90

Step 2: Subtract the improper fractions.

672/90 - 1520/90 = (672 - 1520) / 90 = (-848) / 90

Step 3: Simplify the result, if possible.

-848/90 can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 8:

-848 ÷ 8 = -106 90 ÷ 8 = 11.25

So, the final result is:

-106/11.25

If you want this as a mixed number, you can convert it back:

-106/11.25 = -9 37.75/11.25

So, 7 42/90 - 16 80/90 is equal to approximately -9 3/4 or -9.75.