Question

x=8/21+1/1+1/1+1/1+3/5 então x vale

Answer 1

x=8/21+1/1+1/1+1/1+3/5
=8/21 + 3 + 3/5 => mmc 105
= (5.8 + 3.105 + 63)/105 =
= (40 + 315 + 63)/105 =>
X = 418/105