Question

resuelve : a) 1/7 + 2/3 b) 5× 2 1/5 c) 3/7 × 1/2 ÷ 1/4

Answer 1

a) 1/7 + 2/3 = (3+14)/21 = 17/21
     

b)   (5× 2)1/5 = 10/5=2  si es así el planteamiento

    pero si palantea que 5x21/5 = 105/5 = 21

   
c) 3/7 × 1/2 ÷ 1/4 = 3/14÷ 1/4 = 12/14 = 6/7