SIMPLE FRACTIONS.

⁶/₁₀ of 15 = 6 × 15 ÷ 10 = 9
  ³/₁₀ of 15 = 3 × 15 ÷ 10 = 4⁵/₁₀
³/₁₀ of 60 = 3 × 60 ÷ 10 = 18
⁶/₁₀ of 60 = 6 × 60 ÷ 10 = 36