Question

Zad 1.

Dokończ obliczb

b) 7 - 3 i 5/11 =
c) 3 i 2/3 + 5/7 =
d) 2 i 3/8 + 4 i 4/5 =
e) 7 i 3/4 - 5 i 2/3 =
f) 8 i 1/5 - 4 i 5/6 =
g) 1 i 6/9 + 3 i 11/18 =
h) 5 i 2/7 - 1 i 9/21 =

cd. . .

14/30 + 2 i 1/6 =
2 i 1/9 = 7 i /45 =
3 i 7/18 = 5 i 5/12 =
4 i 7/15 + 5 i 11/20 =
3 i 1/4 - 1 i 1/2 =
4 i 3/14 - 2 i 8/35 =
3 i 1/4 - 2 i 5/18 =
6 i 1/16 - 2 i 9/40 =

zad.2
oblicz sprowadzjac ulamki do wspolnego najmniejszego minaownika.

a) 4/15 + 7/10 =
b) 9/12 + 5/16 =
c) 3/4 - 3/10 =
d) 21/24 - 5/36 =

Bardzo PROSZE O SZYBKIE ODPOWIEDZI !!

Answer 1

A) 4/15 + 7/10 =8/30+21/30 = 29/30
b) 9/12 + 5/16 =36/48+15/48=51/48
c) 3/4 - 3/10 =15/20-6/20 = 9/20
d) 21/24 - 5/36 =63/72-10/72=53/72

Answer 2

Zad.1

b) 7-3 i 5/11= 6 i 11/11- 3 i 5/11= 3 i 6/11
c) 3 i 2/3 + 5/7= 3 i 14/21 + 15/21= 3 i 29/21= 4 i 8/21
d) 2 i 3/8 + 4 i 4/5= 2 i 15/40 + 4 i 32/40= 6 i 47/40= 7 i 7/40
e) 7 i 3/4 - 5 i 2/3= 7 i 9/12 - 5 i 8/12=1 i 13/12= 2 i 1/12
f) 8 i 1/5 - 4 i 5/6= 8 i 6/30 - 4 i 25/30= 7 i 36/30 - 4 i 25/30= 3 i 11/30
g) 1 i 6/9 + 3 i 11/8= 1 i 48/72 + 3 i 71/72= 4 i 119/72= 5 47/72
h) 5 i 2/7- 1 i 9/21= 4 i 27/21 - 1 i 9/21= 3 i 18/21

c.d.
14/30 + 2 i 1/6= 14/30 + 2 i 5/30= 2 i 19/30
2 i1/9 + 7/45= 2 i 5/45 + 7/45= 2 i 12/45
3 i 7/18 + 5 i 5/12=3 i 14/36 + 5 i 15/36= 8 i 29/36
4 i 7/15 + 5 i 11/20= 4 i 28/60 + 5 i 33/60= 9 i 61/60= 10 i 1/60
3 i 1/4 - 1 i 1/= 3 i 1/4 - 1 i 2/4= 2 i 5/4 - 1 i 2/4= 1 i 3/4
4 i 3/14 - 2 i 5/35= 4 i 5/70 - 2 i 16/70= 3 i 85/70 - 2 i 16/70= 1 i 69/70
3 i 1/4 - 2 i 5/18= 3 i 9/36 - 2 i 10/36= 2 i 45/36 - 2 i 10/36= 35/36
6 i 1/16 - 2 i 9/40= 6 i 5/80 - 2 i 18/80= 5 i 85/80 - 2 i 18/80= 3 i 67/80

z.2

a) 4/15 + 7/10= 8/30 + 21/30 = 29/30
b)9/12 + 5/16= 36/48 + 15/48= 5148= 1 i 3/48
c) 3/4 - 3/10= 15/20 - 6/20= 9/20
d)21/24 - 5/36= 63/72 - 10/72= 53/72