Question

Quanto é 4/3 + 1/5 + 2/7

Answer 1

4/3+1/5+2/7

mmc(3,5,7)

3,5,7/ 3
1,5,7/ 5
1,1,7/ 7
1,1,1/ -------
105

agora divide pelo de baixo e multiplica pelo de cima

4/3+1/5+2/7
140+21+30= 191/105

Answer 2

4/3 + 1/5 + 2/7 =

mmc: 105

(35.4)/105 + (21.1)/105 + (15.2)/105 =

(140 + 21 + 30)/105 = 191/105