20 - (3 1/6 + 2 3/4) = ?

1 5/6 + (3 - 1 7/10) = ?

Question

Математика

Хельг

20 февраля, 17:43

20 - (3 1/6 + 2 3/4) = ?

1 5/6 + (3 - 1 7/10) = ?

+2

Ответы (2)

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Элвг · Answer 1

20 - (3 1/6 + 2 3/4) = 20 - (3 2/12 + 2 9/12) = 20 - 5 11/12 = 14 1/12

1 5/6 + (3 - 1 7/10) = 1 5/6 + 1 3/10 = 1 25/30 + 1 9/30 = 2 34/30 = 3 4/30 = 3 2/15

Гравса · Answer 2

20 - (3 1/6 + 2 3/4) = 20-5 11/12 = 14 11/12

1 5/6 + (3-1 7/10) = 1 5/6 + 1 3/10 = 1 50/60 + 1 18/60 = 3 8/60 = 3 2/15

20 - (3 1/6 + 2 3/4) = ?1 5/6 + (3 - 1 7/10) = ?

20 - (3 1/6 + 2 3/4) = ?

1 5/6 + (3 - 1 7/10) = ?