Question

1) 2 1/3-3 3/8 = - 11/24 2)-11/24*4 4/5 = - 5 3)-5+2 4/9=-2 5/9 Решите пожалуцста завтра контрольную мдавать срочно!!!!!! ​

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

1. To subtract mixed numbers, we first need to convert them into improper fractions: 2 1/3 = (2 * 3 + 1) / 3 = 7/3 3 3/8 = (3 * 8 + 3) / 8 = 27/8

Now, subtract the fractions: 7/3 - 27/8

To subtract fractions with different denominators, we need to find a common denominator. In this case, the least common multiple (LCM) of 3 and 8 is 24. We can multiply the numerator and denominator of each fraction by the necessary factors to make the denominators equal to 24:

(7/3) * (8/8) = 56/24 (27/8) * (3/3) = 81/24

Now we can subtract the fractions: 56/24 - 81/24 = (56 - 81)/24 = -25/24

Therefore, 2 1/3 - 3 3/8 = -25/24 or -1 1/24.

2. To multiply fractions, we multiply the numerators and denominators: (-11/24) * (4 4/5)

First, convert the mixed number to an improper fraction: 4 4/5 = (4 * 5 + 4) / 5 = 24/5

Now, multiply the fractions: (-11/24) * (24/5) = (-11 * 24) / (24 * 5) = -264/120

To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 8: -264/120 = (-33 * 8) / (15 * 8) = -33/15

Therefore, (-11/24) * (4 4/5) = -33/15 or -2 3/15.

3. To add a whole number and a mixed number, we need to convert the mixed number into an improper fraction: -5 + 2 4/9

2 4/9 = (2 * 9 + 4) / 9 = 22/9

Now, add the fractions: -5 + 22/9

To add fractions, we need a common denominator. The common denominator here is 9, so we multiply the whole number (-5) by 9/9 to get -45/9: -5 = (-5 * 9) / 9 = -45/9

Now we can add the fractions: -45/9 + 22/9 = (-45 + 22) / 9 = -23/9

Therefore, -5 + 2 4/9 = -23/9 or -2 5/9.

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