Question

Calculeaza:

a: 1/10 - 2/30 + 4/15
b : 7/15 - 1/20 + 1/3
c : 4/9 + 1/12
d : 6/8 + 2/16
e : 9/5 + 2/10

Answer 1

Răspuns:

a) 3/30-2/30+8/30 = 9/30 = 3/10

b) 28/60-3/60+20/60 = 25/60+20/60 = 45/60 = 9/12 = 3/4

c) 48/108 + 9/108 = 57/108

d) 12/16+2/16 = 14/16 = 7/8

e) 18/10 + 2/10 = 20/10 = 2

Explicație pas cu pas:

Am amplificat la numitor comun

Answer 2

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