Question

how to add 15/12+ 3/20​

Answer 1

15/12+3/20

15*5+3*3/60

75+9/60

84/60

7/5

firstly take lcm of denominators

then divide lcm with the denominators one by one

and then multiply the answer with numerator

(like divide 60with 12 and the answer comes 5 , multiply this answer with 15 and same in next fraction) and in last step I have divided this answer with 12 to make the simple fraction