Question

-2целых1\4+3целых1\8=?

Answer 1

$-2\frac {1}{4}+3\frac {1}{8}=-\frac{2*4+1}{4}+\frac {3*8+1}{8}=-\frac{9}{4}+\frac {25}{8}=\frac{-18+25}{8}=\frac{7}{8}$

Если надо перевести в десятичную дробь, то:

$\frac{7}{8}=0,875$

Готово!

Answer 2

Ответ:

$\frac{7}{8}$

или 0,875

Объяснение:

Переобразую неправильную дробь в правильную

$- 2 \frac{1}{4} + 3 \frac{1}{8} = - \frac{9}{4} + \frac{25}{8}$

Answer 3

To solve the arithmetic expression, we'll first convert the mixed numbers into improper fractions.

-2 целых 1/4 can be written as -2 1/4, which is equivalent to -2 4/4 + 1/4 = -8/4 + 1/4 = -7/4.

3 целых 1/8 can be written as 3 1/8, which is equivalent to 3 8/8 + 1/8 = 24/8 + 1/8 = 25/8.

Now, we can add the two fractions:

-7/4 + 25/8

To add these fractions, we need to have a common denominator. The least common multiple (LCM) of 4 and 8 is 8. Let's convert the fractions:

-7/4 = -14/8

Now we can add:

-14/8 + 25/8 = 11/8.

Therefore, -2 целых 1/4 + 3 целых 1/8 is equal to 11/8.