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Auroracabrera110882go
Answered

1.) ⁴/5 -¹/4

2.) 5/7 • 1 ²/5

3.) 5.872 ÷ 0.12

4.) 1.23 × 3.1

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Solution (1) :

[tex]\sf{1. \: \: \dfrac{4}{5} - \dfrac{1}{4}} \\ \\ = \sf{\dfrac{16 - 5}{20}} \\ \\ = \sf{\dfrac{11}{20}}[/tex]

Solution (2) :

[tex]\sf{2. \: \: \dfrac{5}{7} \times 1\dfrac{2}{5}} \\ \\ = \sf{\dfrac{\cancel{5}}{\cancel{7}} \times \dfrac{\cancel{7}}{\cancel{5}}} \\ \\ = \sf{1}[/tex]

Solution (3) :

[tex]\sf{3. \: \: 5.872 \div 0.12} \\ \\ = \sf{48.9333333333}[/tex]

Solution (4) :

[tex]\sf{4. \: \: 1.23 \times 3.1} \\ \\ = \sf{3.813}[/tex]

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