Question

Oblicz:

a) 1/2 + 1/3 +1/4=

b) 1 2/5 + 3 4/10 + 2 1/2=

c) 4 1/3- 2 2/5 + 1 1/5=

d) 7 - 3 1/3 - 2 1/8=

e) 3 3/4- 2 2/3 + 6-3 5/6=

f) 10-(2 1/9- 1/2 + 1 5/6)=

g) (4 1/3 - 2 2/5)-(6 3/5- 5 2/3)=

h) 3 1/4 +2 2/5-(4 1/3 - 2 2/3)=

/- kreska ułamkowa

Answer 1

a) 6/12+4/12+3/12=13/12 = 1 1/12

b) 7/5+34/10+5/2=14/10+34/10+25/10=73/10= 7 3/10

c) 13/3- 12/5+6/5= 65/15-36/15+18/15= 47/15= 3 2/15

d) 7- 10/3-17/8= 7- 40/120-225/120=7-265/120= 7-2 5/24= 4 19/24

e) 15/4-8/3+6-23/6= 45/12-32/12+6-46/12=6-33/12= 6- 2 3/4= 2 1/4

f) 10+19/9+1/2-11/6= 10+38/18+9/18-33/18= 10 7/9

g) 13/3-12/5-33/5+17/3=65/15-36/15-99/15+85/15= 1

h) 7/4+12/5-7/3+8/3=210/120+288/120-280/120+320/120=4 29/60