Operation on Rational Numbers

Topic : Rational Numbers
Question : ADD 2/3 AND 3/4
Solution :
Step 1: Let us add 2/3 and ¾ 2/3+3/4
Step2: The denominators are not same hence find the LCM of
the denominators L.C.M=3x4=12
Step3: Convert the given rationals into rationals having common 2/3x4/4=8/12
denominators 3/4x3/3=9/12
Step4: Since the denominators are same add the numerators 8/12+9/12=8+9/12=7/12
Therefore 2/3+3/4=17/12