Question

/ to kreska ułamkowa zad 41 str13 (matematyka z plusem)

a) 1/2+1/3=

b) 8 i 3/4+1/6+3 i 5/8=

c)16 i 5/9-2 i 1/3=

d)48 i 7/10-13 i 1/4=

e)2 i 3/7+2/5=

f)232 i 5/6+11 i 3/5=

g)2 i 3/8-6/7=

h)56 i 2/9-7 i 7/8=

i)14 i 2/9+6 i 1/3=

j)8/11-2/3=

k)126 i 1/5-2/3=

l)13 i 7/12-9 i 8/9=

poprosze jak najszybciej jak mozna z gory dzieki :):)

Answer 1

rozwiązanie w załączniku

Answer 2

a) 1/2+1/3= 3/6 +2/6= 5/6

b) 8 i 3/4+1/6+3 i 5/8= 35/4 + 1/6 + 29/8= 210/24 + 4/24 + 87/24= 301/24= 12 i 13/24

c)16 i 5/9-2 i 1/3= 16 5/9 - 2 3/9= 14 2/9

d)48 i 7/10-13 i 1/4=48 14/20 - 13 5/20 = 35 9/20

e)2 i 3/7+2/5= 2 15/35 + 14/35 = 2 29/35

f)232 i 5/6+11 i 3/5=232 25/30 + 11 18/30 = 243 43/30 = 244 13/30

g)2 i 3/8-6/7=19/8 - 6/7 = 133/56 - 48/56 = 85/56 = 1 29/56

h)56 i 2/9-7 i 7/8= 56 16/72 - 7 63/72= 55 88/72 - 7 63/72= 48 25/72

i)14 i 2/9+6 i 1/3=14 2/9 + 6 3/9= 20 5/9

j)8/11-2/3=24/33 - 22/33= 2/33

k)126 i 1/5-2/3=126 3/15 - 10/15= 125 18/15 - 10/15=125 8/15

l)13 i 7/12-9 i 8/9= 13 21/36 - 9 32/36= 12 57/36-9 32/36= 3 25/36