Răspuns:
Explicație pas cu pas:
a )
5/8 - ²) 3/4 =
5/8 - 6/8 = - 1/8
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b )
2 : ( - 1/4 ) =
2 • ( - 4 ) = - 8
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c )
- 63/40 • 64/27 =
- 7/5 • 8/3 = - 56/15
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d )
- 2/5 • 3 = - 6/5
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e )
- 3/6 - 3/6 = - 6/6 (⁶ = - 1
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f )
- 2/5 : 1/10 =
- 2/5 • 10 =
- 2 • 2 = - 4