Calcule as frações e, se possovel, simplifique o resultado a)1/10+7/10 b)5/6-1/6 c)1/10+7/10-3/10 d)7/15-3/15-1/15 e)7/20+1/20+7/20 f)5/18+11/18+13/18 g)7/6+4/6-5/6+3/6-9/6Calcule as frações e, se possovel, simplifique o resultado a)1/10+7/10 b)5/6-1/6 c)1/10+7/10-3/10 d)7/15-3/15-1/15 e)7/20+1/20+7/20 f)5/18+11/18+13/18 g)7/6+4/6-5/6+3/6-9/6