31 Мая 2019 в 19:43
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Ответы
1

To solve this problem, follow these steps:

Convert the mixed numbers to improper fractions:
12 19/24 = (24 12 + 19) / 24 = 307 / 24
5 19/28 = (28 5 + 19) / 28 = 159 / 28

Add the two fractions:
307/24 + 159/28

To find a common denominator, we need to find the least common multiple of 24 and 28, which is 168.

Now, convert 307/24 and 159/28 to have the common denominator of 168:

307/24 7/7 = 2149 / 168
159/28 6/6 = 954 / 168

Adding the fractions:

2149/168 + 954/168 = 3103/168

Subtract 3 19/24 from 3103/168

Convert 3 19/24 to an improper fraction:
3 19/24 = (24 * 3 + 19) / 24 = 91 / 24

Subtract the fractions:

3103/168 - 91/24

To find the common denominator, we can multiply 168 and 24 to get a common denominator of 4032.

3103/168 24/24 = 74472 / 4032
91/24 168/168 = 1911 / 4032

Subtracting the fractions:

74472/4032 - 1911/4032 = 72561 / 4032

Therefore, the final answer is 72561/4032 or simplified as a mixed number would be 17 1789/4032.

21 Апр 2024 в 02:03
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