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calculati 17/10+1/4-1 7/40
este un intrag 7/40

Răspuns :

Iakabcristina2
17/10+1/4-1 7/40=
17/10+1/4-47/40=
Aducem,la,numitor,comun
(68+10-47)/40=
31/40
Capsunica35
17/10+1/4-1 intrg.7/40=
17/10+1/4-8/40=
68/40+10/40-8/40=
78/40-8/40=70/40=7/4

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