Question

Aduceti la acelasi numitor fractiile

a) 5pe18,4pe9,23pe36
b)2pe5,13pe50,7pe100,11pe200
c)1pe5,3pe4,7pe10
d)3pe50,7pe25,11pe75
e)3pe16,7pe8,9pe32
f)3pe140,11pe50,13pe700
g)3pe7, 11pe49,17pe98

CU REZOLVARE CU TOT PLS
DACA SE POATE SA TRIMITE TI POZA E BN
DAU INIMA
REPEDEE

Answer 1

a) 5/18 + 4/9+23/36=
se amplifica prima fractie cu 2, a doua cu 4 si a treia cu 1
10/36+16/36+23/36= 49/36
b) se amplifica 1 cu 40, a doua cu 4, a treia cu 2 si ultima cu 1
80/200+ 520/200 + 14/200+ 11/200=625/200=125/40=25/8
c) 1/5+3/4+7/10= 4/5+15/20+14/20= 33/20
d)3/50+7/25+11/75= 9/150+42/150+22/150=73/150
e) 3/16 + 7/8 + 9/32 = 6/32+ 28/32+9/32= 43/32
f)3/140+1/50+13/700=15/700+140/700+13/700= 168/700=84/350=42/175
g) 3/7 + 11/49 + 17/98 = 42/98+22/98+17/98=81/98