What is 12/5 + 3/12?

The below workout with step by step calculation shows how to find the equivalent fraction between 12/5 and 3/12 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 12/5 plus 3/12 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.

Problem and Workout - LCM Method
What is 12/5 plus 3/12 as a fraction by addition using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
12/5 & 3/12
12/5+3/12 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 5 and 12 is 60.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator
=(12 x 60)/(5 x 60)+(3 x 60)/(12 x 60)
=144/60+15/60
=(144 + 15)/60

step 4 Add both numerator and rewrite it in a single form.
= 159/60
=53/20
12/5+3/12=53/20

By using LCM method, 53/20 is the equivalent fraction by adding 12/5 and 3/12.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
12/5 & 3/12
12/5 + 3/12 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (12 x 12) + (3 x 5)/(5 x 12)

step 3 Simplify and rewrite the fraction
= (144 + 15)/60
= 159/60
= 53/20
12/5+3/12 = 53/20
By using cross multiplication method, 53/20 is the addition between two fractions 12/5 and 3/12.