Question

ex 10 va rog frumossss day coroanaa​

Answer 1

Explicație pas cu pas:

10)

a) 2/5+ 3/10= ( numitor comun 10)=

4/10+ 3/10= 7/10

b)

2/9+2/3= ( numitor comun 9)

2/9+ 6/9= 8/9

c)

3/4+5/8= ( numitor comun 8)=

6/8+ 5/8= 11/8

d)

7/8+1/2 = ( numitor comun 8)

7/8+ 4/8= 11/8

e)

1/2+1/4= ( numitor comun 4)

2/4+1/4=3/5

f)

3/10+2/5= ( numitor comun 10)

3/10+ 4/10=

7/10

g)

1/6+2/3= ( numitor comun 6)

1/6+ 4/6=

5/6

h)

3/5+1/20 = ( numitor comun 20)

12/20+ 1/20= 13/20