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Panaitmarius30
a fost răspuns

Efectuati calculele (-3/10)+(4/15)+(7/30)+(+1/12

Răspuns :

Iakabcristina2
Aflam numitorul comun
10=2x5
15=3x5
30=2x3x5
12=2²x3
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c.m.m.m.c.=2²x3x5=60

(-3x6)/30 + (4x2)/30 + (7x2)/60 + (1x5)/60=(-18+8+14+5)/60=9/60=3/20

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