Question

4 3/10 +2 7/20+3 9/10​

Answer 1

Ответ:

10 11/20 .

Пошаговое объяснение:

Решение:

$4\frac{3}{10} + 2 \frac{7}{20} + 3\frac{9}{10} = (4 + 2 + 3) + (\frac{6+7+18}{20})=9 + \frac{31}{20}=9 + 1\frac{11}{20}=10\frac{11}{20}$

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Answer 2

To add these mixed numbers, you need to convert the mixed numbers into improper fractions, then find a common denominator, and finally perform the addition. Let's go step by step.

Step 1: Convert the mixed numbers into improper fractions: 4 3/10 = (4 * 10 + 3) / 10 = 43/10 2 7/20 = (2 * 20 + 7) / 20 = 47/20 3 9/10 = (3 * 10 + 9) / 10 = 39/10

Step 2: Find a common denominator, which in this case is 20, because 10 and 20 have a common multiple of 20.

Step 3: Perform the addition: (43/10) + (47/20) + (39/10)

To add fractions, you need to have the same denominator. Multiply the numerators by the same factor to get a common denominator of 20.

(43/10) + (47/20) + (39/10) = (86/20) + (47/20) + (78/20)

Now that we have the same denominator, we can add the numerators:

(86 + 47 + 78)/20 = 211/20

So, 4 3/10 + 2 7/20 + 3 9/10 = 211/20 as an improper fraction.