Question

Oblicz :
1.-(-3 -1/3 ) : (-1/3 + 4 ) =
2.7/9 - 0.8 + (2/3)do potegi 2 =
3.(1/4 x 1 3/4 - 1/8 _ : 1/6 =


PROSZ NA JUTROO PROSZE ;(

Answer 1

1. -(-3 - 1/3) : (-1/3 + 4) = -(-9/3 - 1/3) : (-1/3 + 12/3) = -(-10/3) : (11/3) = (10/3) * (3/11) = 10/11
2. 7/9 - 0.8 + (2/3)^2 = 7/9 - 8/10 + 4/9 = 11/9 - 8/10 = 110/90 - 72/90 = 38/90 = 19/45
3. (1/4 * 13/4 - 1/8) : 1/6 = (13/16 - 2/16) : 1/6 = 11/16 * 6 = 66/16 = 33/8