Question

3/9÷31/7×4,3111...÷6/8

Answer 1

4,311... = 4 + 0,3111..
=> 4 + 31 -3 /90 = 4 + 28/90 = 328/90 =164/45


3/9 ÷ 31/7 × 164/45 ÷ 6/8

3/9 × 7/31 × 164/45 × 8/6

21/279 × 1312/270

27552/75330 = 0,365...


R= 0,365...
bons estudos !