Х:7,5=6/164 целых 1/9:х=7,49 целых 2/11 х = 10,12,8х= 9 целых 1/3

Question

Х:7,5=6/16
4 целых 1/9:х=7,4
9 целых 2/11 х = 10,1
2,8х= 9 целых 1/3

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Answer 1

Х:7,5=⁶/₁₆
х:7,5=³/₈
х:7,5=0,375
x = 0,375 × 7,5
x = 2,8125
*********
4¹/₉:х=7,4
³⁷/₉:х=⁷⁴/₁₀
x = ³⁷/₉ : ⁷⁴/₁₀ 
x = ³⁷/₉ × ¹⁰/₇₄
x = ³⁷ˣ¹⁰/₉ₓ₇₄
x = ¹⁰/₁₈
x = ⁵/₉
***************
9²/₁₁ х = 10,1
¹⁰¹/₁₁ х = ¹⁰¹/₁₀
x = ¹⁰¹/₁₀ : ¹⁰¹/₁₁
x = ¹⁰¹/₁₀ × ¹¹/₁₀₁
x = ¹⁰¹ˣ¹¹/₁₀ₓ₁₀₁
x = ¹¹/₁₀
x = 1,1
********
2,8х= 9¹/₃
²⁸/₁₀х= ²⁸/₃
x = ²⁸/₃ : ²⁸/₁₀
x = ²⁸/₃ × ¹⁰/₂₈
x = ²⁸ˣ¹⁰/₃ₓ₂₈
x = ¹⁰/₃
x = 3¹/₃

Answer 2

2,8 х=9 1/3
14/5 х=9 1/3
х=28/3 :14/5
х=28/3 * 5/14
х=10/3
х=3 1/3

х : 7,5=6/17
х=6/17 * 15/2
х=45/17
х=2 11/17

4 1/9 :х=7,4
х=37/9 : 37/5
х=37/9 * 5/37
х=5/9

9 2/11 х=10,1
х=101/10 : 101/11
х=101/10 * 11/101
х=11/10=1,1