Question

Д ) -2/9+5/9=? . е ) -1 3/4-2 1/12=?

Answer 1

Ответы: д) -1/3; е) -3 5/6.

Answer 2

а) -2/9 + 5/9 = 3/9 = 1/3

б) To subtract mixed numbers, we need to first convert them to improper fractions.

For -1 3/4: -1 3/4 = -1 - 3/4 = -4/4 - 3/4 = -7/4

For 2 1/12: 2 1/12 = 2 + 1/12 = 24/12 + 1/12 = 25/12

Now, we can subtract the fractions: -7/4 - 25/12

To find a common denominator, we can multiply the denominators together: 4 * 12 = 48

Now, let's convert the fractions to have a denominator of 48: -7/4 * 12/12 = -84/48 25/12 * 4/4 = 100/48

Now we can subtract the fractions: -84/48 - 100/48 = (-84 - 100)/48 = -184/48

We can simplify this fraction by dividing the numerator and denominator by their greatest common divisor, which is 8: -184/48 = -23/6

Therefore, -1 3/4 - 2 1/12 = -23/6.