Question

ułamki

7 1/3+6,6=

4,2+3 1/8=

4,8-1,2=

1 3/4-1,2=

3,6x3/4=

5 1/4:2 2/5=

5 5/6-0,12=

1 1/4x1/5-0,2=

Answer 1

a) 7 1/3+6,6= 7 1/3+6 6/10= 7 10/30+ 6 /18/30= 13 28/30
b)  4,2+3 1/8= 4 2/10+ 3 1/8= 4 16/40+ 3 10/40=7 26/40
c)  4,8-1,2= 3,6
d) 1 3/4-1,2= 1 3/4- 1 2/10= 1 15/20-1 4/20= 11/20
e) 3,6x3/4=
f) 5 1/4:2 2/5= 21/4: 12/5=21/4 * 5/12=105/48= 2 18/48g) 5 5/6-0,12= 0,8-0,12= 0,68
h) 1 1/4x1/5-0,2=

Answer 2

7 1/3 + 6.6= 7 10/30 + 6 18/30 = 13 28/30

4.2 = 3 1/8= 4 8/40 + 3 5/40 = 7 13/40

4,8 - 1,2 = 3,6

1 3/4 - 1,2 = 1 15/20 - 1 4/20 = 11/20

3,6 x 3/4 = 36/10 x 3/4 = 27/10= 2,7

5 1/4 : 2 2/5 = 21/4 x 5/12 = 30/16 = 1 14/16

5 5/6 - 0,12 = 5 500/600 - 12/100 = 5 488/600

1 1/4 x 1/5 - 0,2 = 5/4 x 1/5 - 0,2 = 1/4 - 0,2 = 0,25 - 0,2 = 0,05