Question

calcule as seguintes frações a) 0,2+1/3+3 b) 3 1/4+5/8 c) 21/6+0,7 d) 0,30+7/10+2 1/10 e) 1,25+2/3

Answer 1

a)2/10+1/3+3= 6+10+90/30= 106/30= 53/15

b)62+5/8= 67/8
c)21/6+7/10= 105+21/30= 126/30= 63/15= 21/5
6,10|2
3,5 |3
1,5 |5
1,1

d)30/100+7/10+21/10= 30+70+210/100= 310/100= 3,1

100,10|2
50,5 |2
25,5|5
5,1|5
1,1

e) 125/100+2/3=375+200/300= 575/300= 115/60= 23/12