CALCULE AS OPERAÇOES E SIMPLIFIQUEA)3/10+1/4B)13/10-8/9C)3/4+(4/5-3/10)D)4/5-2/3E)5/8-1/4F)1 1/4+2 1/6G)3/25+2/5H)5/8-3/8-1/8
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A)3/10+1/4 = (6+5)/20==> 11/20
B)13/10-8/9 = (117-80)/90 ==> 37/90
C)3/4+(4/5-3/10) = (15+16-6)/20 ==> 25/20 ou 5/4
D)4/5-2/3= (12-10)/15 ==> 2/15
E)5/8-1/4 = (4-2)/8 ==> 2/8 ou 1/4
F)1 1/4+2 1/6 = 5/4 + 13/6 ==>(15+26)/12 ==> 41/12
G)3/25+2/5= (3+10)/25 ==> 13/25
H)5/8-3/8-1/8 = 1/8
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