Question

giúpp

Answer 1

Answer 2

a) 9/5 + 2/5 x 4/6 = 9/5 + 4/15 = 27/15 + 4/15 = 31/15
b) 3/8 x 2 - 6/7 x 1/3 = 3/4 - 2/7 = 21/28 - 8/28 = 13/28

Answer 3

a) 9/5 + 2/5 x 4/6 = 9/5 + 4/15 = 27/15 + 4/15 = 31/15
b) 3/8 x 2 - 6/7 x 1/3 = 3/4 - 2/7 = 21/28 - 8/28 = 13/28