Question

prosze o wyniki plus działanie XD
a)1 ⅔+2 ¾ × (8²/5 - 7³/₂₀)=
b) 2³/5 ×6¹/₄- 3¼÷3 5/7 + 0,625=
c) 4⁴/5÷1,6 ×1⅞-1⅝+2,25=
d)28 3/5-0,6× (8⅔-3¼+2¼-5/12)=
e)16⅔÷2 7/9÷3,6-1,6×2¾÷5,5=

Answer 1

a) 1 ⅔+2 ¾ × (8²/5 - 7³/₂₀)= 1 8/12 + 2 9/12 x (8 8/20 - 7 3/20) = 4 5/12 x 1 5/20 = 53/12 x 5/4 = 265/48 = 5 25/48

 

b) 2³/5 ×6¹/₄- 3¼÷3 5/7 + 0,625 = 13/5 x 25/4 - 13/4 x 7/26 + 0,625 = 325/20 - 91/104 + 0,625 = 16 1/4 - 91/104 + 0,625 = 16 26/104 - 91/104 + 0,625 = 15 39/104+0,625 = 15 4875/13000 + 8125/13000 = 15 128/130 = 15 64/65

 

c) 4⁴/5÷1,6 ×1⅞-1⅝+2,25= 24/5 x 10/16 x 1 7/8 - 1 5/8 + 2 /14 = 24/8 x 15/8 - 1 5/8 + 2 1/4 = 300/64 - 1 5/8 + 2 1/4 = 4 11/16 - 1 5/8 + 2 1/4 = 4 11/16 - 1 10/16 + 2 4/16 = 5 5/16

 

d) 28 3/5-0,6× (8⅔-3¼+2¼-5/12)= 28 3/5 - 0,6 x 10 3/12 = 28 9/15 - 6 2/15 = 22 7/15

 

e) 16⅔÷2 7/9÷3,6-1,6×2¾÷5,5= 50/3 x 9/25 : 3,6 - 1,6 x 2 3/4 : 5,5 = 6/1 x 10/36 - 16/10 x 11/4 : 5,5 = 1 24/36 - 4 16/40 : 5,5 = 1 24/36 - 196/40 x 10/55 = 1 24/36 - 49/55 = 1 330/495 - 441/495 = 384/495 = 48/61,875

Answer 2

a)1 ⅔+2 ¾ × (8²/5 - 7³/₂₀)= 5 25/240

 

b) 2³/5 ×6¹/₄- 3¼÷3 5/7 + 0,625= 16

 

c) 4⁴/5÷1,6 ×1⅞-1⅝+2,25= 3,65

 

d)28 3/5-0,6× (8⅔-3¼+2¼-5/12)= 24,25

 

e)16⅔÷2 7/9÷3,6-1,6×2¾÷5,5=1368/664

 

Jak chcesz obliczenia to przyślij e-mail albo coś.