Question

Three sevenths of num is 12.find the number​

Answer 1

Answer:

x = 28

Solution:

3/7x = 12

3/7x ÷ 3/7 = 12 ÷ 3/7 ( divide 3/7 in both sides )

x = 12 ÷ 3/7 (divide)

x = 84/3 (simply divide 84 and 3)

x = 28

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(solution for dividing the fraction and the whole number 12 and 3/7, for those who don't know how to divide fractions and whole numbers...)

12/1 ÷ 3/7

12/1 ÷ 7/3 (reciprocal method)

12/1 × 7/3 (change operation to multiplication)

12/1 × 7/3 = 84/3 (multiply)

84/3 ⇒ 28 (simplify)

Answer 2

Answer:

let the number be x

$\frac{3}{7} \times x = 12 \\ 3x = 12 \times 7 \\ 3x = 84 \\ x = \frac{84}{3} \\ x = 28$

therefore, the number is 28.

hope helpful <3