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Hasil 140‰ × 1¼ – ⅖ : 0,8

Jawaban:
140‰ × 1¼ – ⅖ : 0,8
= (¹⁴⁰/₁₀₀₀ × ⁵/₄) – (⅖ : ⁸/₁₀)
= (¹⁴/₁₀₀ × ⁵/₄) – (⅖ : ⁴/₅)
= (⁷/₄ × ½) – ½
= ⁷/₈ – ⁴/₈
= ⅜
Jadi, 140‰ × 1¼ – ⅖ : 0,8 = ⅜.