Question

aduceti fractiile la un numitor comun:a).1/6; 1/7.b).3/4;2/5.c).5/2;2/9.d).9/11; 11/9.e).3/8; 1/4.f). 5/16; 5/2

Answer 1

a)numitorul comun 42             1/6 x 1/7=7/42 x 6/42=42/42

b)numitorul comun20            3/4x  2/5 = 15/20x  8/20= 120/20

c)numitorul comun  18           5/2x  2/9 =45/18.x  4/18 =180/18

d) numitorul comun 99          9/11 x 11/9. = 81/99 x 121/99=9801

e)numitorul comun 8             3/8 x 1/4. =3/8 x 2/8=6/8

f)numitorul comun16              5/16x 5/2. =5/16 x 40/16 =200/16

Answer 2

A)1/6 1/7 = 7/42 6/42
B)3/4 2/5 = 15/20 8/20
C)5/2 2/9 =45/18. 4/18
D)9/11 11/9. = 81/99 121/99
E)3/8 1/4. =3/8 2/8
F)5/16 5/2. =5/16 40/16