Question

3.Tentukan hasil dari
a.2/15-1/2+3/10

b.3/7+4/21-13/14

Answer 1

A)
2/15 - 1/2 + 3/10
= 4/30 - 15/30 + 9/30
= -11/30 + 9/30
= -2/30
= -1/15


b)
3/7 + 4/21 - 13/14
= 18/42 + 8/42 - 39/42
= 26/42 - 39/42
= -13/42