Question

1/3+2/3×1/2

2/3-1/2×1/3

1/4+1/2÷3/4

1/2+1/4÷1/5​

Answer 1

Teniendo en cuenta que multiplicaciones y divisiones se realizan antes que sumas y restas, resulta:

1/3 + 2/3 × 1/2 = 1/3 + 2/6 = 2/6 + 2/6 = 4/6 = 2/3

2/3 - 1/2 × 1/3 = 2/3 - 1/6 = 4/6 - 1/6 = 3/6 = 1/2

1/4 + 1/2 ÷ 3/4 = 1/4 + 4/6 = 3/12 + 8/12 = 11/12

1/2 + 1/4 ÷ 1/5​ = 1/2 + 5/4 = 2/4 + 5/4 = 7/4