Question

How to do this?
1/5+1/3-1/7​

Answer 1

Answer:

71/105

Step-by-step explanation:

FIRST CALCULATE THE LCM OF DENOMINATORS

THAT IS 105

NOW,

(1×21+1×35+1×15)/105

AFTER SIMPLIFICATION,

71/105

Answer 2

Answer:

LCM of 5,3,7 is 105

1/5×21=21/105+1/3×35=35/105-1/7×15=15/105

21+35/105=56/105- 15/105

41/105 ans.