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a fost răspuns

Calculati : ( 5 supra 6 plus 7 supra 8 ) ori 18 supra 41 plus 1 supra 4 ( 11 supra 12 minus 7 supra 15 ) ori 10 supra 9 plus 1 supra 2 VA ROG DAU COROANA

Răspuns :

( 5 / 6 + 7 / 8 ) × 18 / 41 + 1 / 4 =

( 20 / 24 + 21 / 24 ) × 18 / 41 + 1 / 4 =

41 / 24 × 18 / 41 + 1 / 4 =

738 / 984 + 1 / 4 =

738 / 984 + 246 / 984 =

984 / 984 = 1


( 11 / 12 - 7 / 15 ) × 10 / 9 + 1 / 2 =

( 55 / 60 - 28 / 60 ) × 10 / 9 + 1 / 2 =

27 / 60 × 10 / 9 + 1 / 2 =

270 / 540 + 1 / 2 =

270 / 540 + 270 / 540 =

540 / 540 = 1

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