Question

5.Wykonaj działania : a)1⁷/₈ *(-6)= h)-2⅜ -¹/₁₂= i)-13,1-2,5= j)17,21-20,03= k)-0,82 *(-0,3)= l)0,75-(1⅔)=

Prosze o 0bliczenia;)

Answer 1

a)1⁷/₈ *(-6) =
= 15/8 * (-6) =
= -45/4 =
= -11 1/4

h)-2⅜ -¹/₁₂ =
= -19/8 - 1/12 =
= -57/24 - 2/24 =
= -59/24 =
= -2 11/24

i)-13,1-2,5 =
= - 15,6

j)17,21 - 20,03 =
= 2,82

k)-0,82 * (-0,3) =
= 0,246

l)0,75-(1⅔) =
= 3/4 - 5/3 =
= 9/12 - 20/12 =
= -11/12