0,88 : 1⅜ = ⁸⁸/₁₀₀ :¹¹/₈ =⁸⁸/₁₀₀ ·⁸/₁₁ =⁶⁴/₁₀₀=0,64;
0,88 : 1⅜ =0,88:1,375=0,64
0.88: 1 3/8= 88/10 : 1 3/8= 88\10 : 11/8= 64/10=0.64
