Question

Ex 24 Va rag mult Ajutati-ma Vă dau coroana

Answer 1

a)=3 supra 5 × la 7 supra 1=21 supra 3
b)=12 supra 6
c)=18 supra 15
d)=12 supra 40
e)21 supra 90
f)=21 supra 44
g)=35 supra 180
h)=15 supra 120
i)=60 supra 200
j)=560 supra 1200

Answer 2

a) 3/5 x7= 21/5
b)2/7 x6 = 12/7
c) 9x 2/15=simplificam 9 si 15 prin 3= 3 x2/5= 6/5
d) 4/5 x 3/8 =simplific 4 si 8 prin 4= 1/5 x3/2 =3/10
e)7/9 x 3/10 = simplific 3 si 9 prin 3= 7/3 x1/10= 7/30
f) 7/11 x 3/4 =21/44
g)5/18 x 7/10=  simplific 5 si 10 prin 5 = 1/18 x 7/2 = 7/36
h) 3/20 x5/6 =simplific 3 si 6 prin 3 , simplific 20 si 5 prin 5= 1/4 x1/2 =1/8
i) 12/25 x5/8 =simplific 12 si 8 prin 4 , simplific 5 si 25 prin 5 =3/5 x1/2= 3/10
j)16/25 x 35/48 =simplific 25 si 35 cu 5, simplific 16 si 48 cu 16=1/5 x7/3=7/15