Question

Oblicz:

a) ½-(-1/6 - 1/3) =

b) 7/6 + (-5/4 - 4/3) =

c) -(-2⅔) + 7/15 =

d) -1 9/16 + 11/12 =

e) -2⅓ × (-27/28) =

i jeśli chodzi o np. 1/6 to ułamek, czyli jedna szósta lub 1/3 to jedna trzecia. ;P

Dam najj :)

Answer 1

a) ½-(-1/6 - 1/3) =1/2-(-1/6-2/6)=1/2-(-3/6)=1/2-(-1/2)=1/2+1/2=1

b) 7/6 + (-5/4 - 4/3) =7/6+(-15/12-16/12)=7/6+(-31/12)=14/12-31/12=-17/12=-1 i 5/12

c) -(-2⅔) + 7/15 =-(-2 i 10/15)+7/15=2 i 10/15+7/15=2 i 17/15=3 i 2/15

d) -1 9/16 + 11/12 = -1 54/96+88/96=-150/96+88/96=-62/96=-31/48

e) -2⅓ × (-27/28) =-7/3 x (-27/28)=9/4=2 i 1/4=2.25

Answer 2

d)-25/16+11/12=-75/48+44/48=-31/48

e)-7/3x(-27/28)=2 1/4

a)½-(-1/6 - 1/3) =
-1/2-(-1/6-2/6)=1/2-(-3/6)=1/2+1/2=2/2=1

b) 7/6 + (-5/4 - 4/3) =7/6+(-5/4-4/3)=7/6+(-15/12-16/12)=7/6+21/12=14/12+21/12=35/12=2 11/12
c) -(-2⅔) + 7/15 =8/3+7/15=47/15=3 2/15

Answer 3

a) ½-(-1/6 - 1/3) =½-(-⅙)=½+⅙=⁴/₆

b) 7/6 + (-5/4 - 4/3) =-³¹/₁₂

c) -(-2⅔) + 7/15 =3²/₁₅

d) -1 9/16 + 11/12 =2²³/₄₈

e) -2⅓ × (-27/28) =2⁵/₂₁