Oblicz: ( 3 1/20 - 2,65) * 4 =
-2 - 1 1/14 * 0,28 =
- 6,5 * 5/13 + 3/5 =
( 2 3/4 - 1 5/6) * 21 =
-4,5 + 3 * 1 1/4 =
( 3 1/20 - 2,65) * 4 =(61/20-265/100)*4=(305/100-265/100)*4=40/100*4=160/100=1 6/10
-2 - 1 1/14 * 0,28 = -2 -15/14*28/100 = -2 - 30/100 = -200/100 - 30/100 = - 230/100 = - 2 3/10
- 6,5 * 5/13 + 3/5 =- 65/10*5/13 + 3/5=- 65/26 + 3/5 = - 345/130 + 78/130 = - 267/130 = - 2 7/130
( 2 3/4 - 1 5/6) * 21 = (11/4-11/6)*21=(66/24 - 44/6)*21 = 22/24*21=462/24=19 1/4
-4,5 + 3 * 1 1/4 = -4,5 + 33/4 = -45/10 + 33/4 = - 90 / 20 + 165 / 20 = 75/20 = 3 3/4
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( 3 1/20 - 2,65) * 4 =(61/20-265/100)*4=(305/100-265/100)*4=40/100*4=160/100=1 6/10
-2 - 1 1/14 * 0,28 = -2 -15/14*28/100 = -2 - 30/100 = -200/100 - 30/100 = - 230/100 = - 2 3/10
- 6,5 * 5/13 + 3/5 =- 65/10*5/13 + 3/5=- 65/26 + 3/5 = - 345/130 + 78/130 = - 267/130 = - 2 7/130
( 2 3/4 - 1 5/6) * 21 = (11/4-11/6)*21=(66/24 - 44/6)*21 = 22/24*21=462/24=19 1/4
-4,5 + 3 * 1 1/4 = -4,5 + 33/4 = -45/10 + 33/4 = - 90 / 20 + 165 / 20 = 75/20 = 3 3/4