Question

15 7/18 + 11 8/9 + 4/9 + 5/18

Answer 1

=15 7\18+5\18+ 11 8\9+ 4\9=15 12\18+11 12\9 (сокращаем 12 и 18 на 6 )(выделяем целую часть из 12\9 и сокращаем на 3)получаем=15 2\3 +12 1\3=27 3\3=28

Answer 2

= 26 целых числители 7+16+8+5/18=26 числитель 36/18 сократить =28 целых

Answer 3

To add mixed numbers with fractions, we need to convert the mixed numbers to improper fractions first.

Let's start with 15 7/18. To convert this to an improper fraction, we multiply the whole number by the denominator of the fraction and add the numerator.

15 7/18 = (15 x 18 + 7)/18 = 277/18

Next, we convert 11 8/9 to an improper fraction:

11 8/9 = (11 x 9 + 8)/9 = 107/9

Now we can add the fractions:

277/18 + 107/9 + 4/9 + 5/18

To add these fractions, we need to find a common denominator. The smallest common multiple of 9 and 18 is 18 x 9 = 162.

277/18 + 107/9 + 4/9 + 5/18 = (277 x 9)/(18 x 9) + (107 x 18)/(9 x 18) + (4 x 18)/(9 x 18) + (5 x 9)/(18 x 9)

= 2493/162 + 1926/162 + 72/162 + 45/162

= 4536/162

= 28

Therefore, the sum of the given mixed numbers and fractions is 28.