Fraction calculation

Determine one-third of the number, one-fifth of which is one-seventh.

Final Answer:

x =  0.2381

Step-by-step explanation:


n/5 = 1/7
x = n/3

7n = 5
n-3x = 0

Row 2 - 1/7 · Row 1 → Row 2
7n = 5
-3x = -0.71


x = -0.71428571/-3 = 0.23809524
n = 5/7 = 0.71428571

n = 5/7 ≈ 0.714286
x = 5/21 ≈ 0.238095

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