Question

*16/21 ÷ 12/28 = ?*

1️⃣ 3/4
2️⃣ 16/9
3️⃣ 4/3
4️⃣ 16/3​

Answer 1

hii friends this question level is very low

16/21×28/12

16/9

i hope this answer to help everyone

Answer 2

Answer:

Required value is $1 \frac{7}{9} = \frac{16}{9}$

So, option 2 is the correct answer.

Step-by-step explanation:

Given,

$\frac{16}{21} \div \frac{12}{28} \\ = \frac{16}{21} \times \frac{28}{12} \\ = \frac{2 \times 2 \times 2 \times 2}{3 \times 7} \times \frac{2 \times 2 \times 7}{3 \times 2 \times 2} \\ = \frac{2 \times 2 \times 2 \times 2}{3 \times 3} \\ = \frac{16}{9} \\ = 1 \frac{7}{9}$

This is a problem of Algebra.

Some important Algebra formulas.

(a + b)² = a² + 2ab + b²

(a − b)² = a² − 2ab − b²

(a + b)³ = a³ + 3a²b + 3ab² + b³

(a - b)³ = a³ - 3a²b + 3ab² - b³

a³ + b³ = (a + b)³ − 3ab(a + b)

a³ - b³ = (a -b)³ + 3ab(a - b)

a² − b² = (a + b)(a − b)

a² + b² = (a + b)² − 2ab

a² + b² = (a − b)² + 2ab

a³ − b³ = (a − b)(a² + ab + b²)

a³ + b³ = (a + b)(a² − ab + b²)

Know more about Algebra,

1) https://brainly.in/question/13024124

2) https://brainly.in/question/1169549

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