Question

urgent va rog dau coroana​

Answer 1

Răspuns:

5)

a) 2/5× 2 1/2=

2/5 × 5/2 = ( simplificam prin 2 si 5)

1/1× 1/1= 1

b) 5/12 × 1 1/5=

5/12 × 6/5=30/60

1/30

c) 10 2/3 ×3/8=

32/3 × 3/ 8 = ( simplificam prin 3 si 8)

4/1 ×1/1= 4

d) 2 1/7 × 2 4/5=

15/7× 14/5 = ( simplificam prin 5 si 7)

3/1× 2/1=

6/1=6

e)

4 1/5 × 2 1/7=

21/5× 15 /7 = ( simplificam prin 5 si 7)

3/1× 3/1= 9/1=9

f)

1 1/4 ×1 1/10=

5/4 × 11/10=

1/4× 11/2=

11/8