Question

Va rog din tot sufletul ajutatima PLS eu la ora 21:00 ma culc

Answer 1

a)$\frac{5}{17} + \frac{7}{17} = \frac{12}{17}$
b)$\frac{15}{41} + \frac{13}{41} = \frac{28}{41}$
c)$\frac{23}{17} + \frac{1}{17} = \frac{24}{17}$
d)$\frac{16}{93} + \frac{51}{93} = \frac{67}{93}$
e)$\frac{2}{4} + \frac{7}{4} = \frac{9}{4}$
f)$\frac{2}{23} + \frac{7}{23} = \frac{9}{23}$
g)$\frac{15}{43} + \frac{13}{43} = \frac{28}{43}$
h)$\frac{23}{19} + \frac{17}{19} = \frac{40}{19}$

Answer 2

1.a)12/17;b)28/41;c)24/17;d)67/93;e)9/4;f)9/23;g)28/43;h)40/19
2.a)6/4=3/2
   b)34/17=2
   c)31/93=1/3
   d)34/14=17/7
   e)18/16=9/8
   f)20/8=5/2
   g)44/10=22/5
   h)20/5=4
3.a)4/15 + 10/15 = 14/15
   b)30/22 + 13/22 = 43/22
   c)69/21 + 1/21 = 70/21
   d)16/93 + 153/93 = 169/93
   e)4/16 + 3/16 = 7/16
   f)15/18 + 7/18 = 22/18 = 11/9
   g)15/42 + 45/42 = 60/42 = 10/7
   h)23/81 + 3/81 = 26/81
4.a)Numitor comun 12 : (3·4+5·4)/12=32/12=8/3
   b)Numitor comun 77: (15·11+13)/77=178/77
   c)Numitor comun 143 : (3·11+13)/143=46/143
   d)Numitor comun 111 : (16·37+11·3)/111=(592+33)/111=625/111
   e)Numitor comun 35 : (11·7+3·5)/35=112/35
   f)Numitor comun 209 : (19+55)/209=74/209
   g)Numitor comun 115 : (69+5)/115=74/115
   h)Numitor comun 77 : (8·11+13·7)/77=179/77
5.a)Numitor comun 12 : (2+15)/12=17/12
   b)Numitor comun 42 : (26+39)/42=65/42
   c)Numitor comun 60 : (16+3)/60=19/60
   d)Numitor comun 100 : (24+35)/100=59/100
   e)Numitor comun 70 : (55+6)/70=61/70
   f)Numitor comun 24 : (3+14)/24=17/24
   g)Numitor comun 66 : (10+3)/66=13/66
   h)Numitor comun 18 : (20+33)/18=53/18