Question

1. 2⅓ : (-28/27)

2. 2 2/9- 3⅚+5⅓

3. (-2 ⅗)- 3⅛+ ⅛

4.2- 8-½

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12+½

Prosze tylko szybko bo to na sprawdzian jest!

Daje naj od razu

Answer 1

1.

2 i 1/3 : (-28/27) = 7/3 * (-27/28) = -9/4 = -2 i 1/4

 

2.

2 i 2/9 - 3 i 5/6 + 5 i 1/3 = 2 i 4/18 + (-3 i 15/18) + 5 i 6/18 =  7 i 10/18 + (-3 i 15/18) = 6 i 28/18 + (-3 i 15/18) = 3 i 13/18

 

3.

(-2 i 3/5) - 3 i 1/8 + 1/8 = (-2 i 3/5) + (-3 i 1/8) + 1/8 = (-2 i 3/5) + (-3) = - 5 i 3/5

 

4.

(2 - 8 - 1/2) / (12 + 1/2) = (-6 - 1/2) / (12 i 1/2) = - 6 i 1/2 : 12 i 1/2 = - 13/12 : 25/12 = - 13/12 * 12/25 = - 13/25