What is 7/9 plus 7/12?
7/9 + 7/12 as a fraction provides the detailed information about what is the sum of 7/9 and 7/12 in fraction and decimal form, and the answer with steps to understand how it is being calculated by using different methods.
7/9+7/12 equals to
7/9 + 7/12 = 49/36
Hence, 7/9 + 7/12 is equal to 49/36.
where
7/9 is a fraction as an addend,
7/12 is a fraction as an addend,
49/36 is the sum of 7/9 and 7/12.
7/9 plus 7/12 as a decimal
7/9 + 7/12 = 49/36
49/36 = 1.3611
Hence, 7/9+7/12 can be written as 1.3611 in decimal.
where
1.3611 is the sum of 7/9 and 7/12.
How-to: 7/9 + 7/12 = ?
1. LCM method,
2. Cross multiplication method.
Problem and Workout - LCM Method:
What is 7/9 plus 7/12 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/9
Fraction B: 7/12
What to be found?
7/9+7/12 = ?
Find what's the sum of 7/9 and 7/12.
step 2 Compare the denominators of fractions 7/9 and 7/12 to identify whether it is a like or unlike fraction addition. Since the denominators of given fractions 7/9 and 7/12 are not equal, it is said to be unlike fractions addition.
step 3For unlike fractions addition, find the LCM (least common multiple) of both denominators of fractions 7/9 and 7/12:
The LCM of 9 and 12 is 36.
step 4 Write the fractions 7/9 and 7/12 in the addition expression form and multiply LCM with all the numerators and denominators of both fractions.
=7/9+7/12
=(7 x 36)/(9 x 36)+(7 x 36)/(12 x 36)
step 5 Simplify the expression to have common denominator:
=28/36+21/36
step 6 Take the common values out and rewrite the above expression like the below:
=1/36 x (28/1+21/1)
=1/36 x (28 + 21)
step 7Simplify the above expression further:
=1/36 x 49
=49/36
7/9+7/12=49/36
Hence,
7/9 plus 7/12 equals to 49/36 in fraction.
Problem and Workout - Cross Multiplication Method
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/9
Fraction B: 7/12
What to be found?
7/9+7/12 = ?
Find what's the sum of 7/9 and 7/12.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (7 x 12), find the product of numerator of Fraction B and denominator of Fraction A (7 x 9), and find the product of both denominators of Fraction A and Fraction B (9 x 12) and rewrite the equation as like the below:
= (7 x 12) + (7 x 9)/(9 x 12)
step 3 Simplify and rewrite the fraction:
= (84 + 63)/108
= 147/108
= 49/36
7/9+7/12 = 49/36
Hence,
7/9 plus 7/12 = 49/36
