What is 7/9 plus 4/8 in fraction?
7/9 plus 4/8 equals to 23/18 in fraction form.
Learn how to find what is 7/9 plus 4/8 in fraction form just in a few minutes. We have covered the easiest method to write 7/9 + 4/8 as a fraction and decimal.
Summary: 7/9 plus 4/8
Since both the fractions have the unequal denominators, you have to find the equivalent fractions for 7/9 and 4/8 having identical denominators before starting adding the fractions. Find the LCM of denominators, 72 is the LCM of 9 and 8. Multiply the LCM 72 with all the numerators and denominators of both fractions (7/9 x 72/72) + (4/8 x 72/72) and simplify further in order to have the common denominators. By simplifying the fraction addition expression becomes 92/72.
The below workout with step by step calculation shows how to find the equivalent fraction between 7/9 and 4/8 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 7/9 plus 4/8 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.
7/9+4/8 using LCM Method:
What is 7/9 plus 4/8 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/9
Fraction B: 4/8
What to be found?
7/9+4/8 = ?
Find what's the sum of 7/9 and 4/8.
step 2 Compare the denominators of fractions 7/9 and 4/8 to identify whether it is a like or unlike fraction addition. Since the denominators of given fractions 7/9 and 4/8 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 4/8:
The LCM of 9 and 8 is 72.
step 4 Write the fractions 7/9 and 4/8 in the addition expression form and multiply LCM with all the numerators and denominators of both fractions.
=7/9+4/8
=(7 x 72)/(9 x 72)+(4 x 72)/(8 x 72)
step 5 Simplify the expression to have common denominator:
=56/72+36/72
step 6 Take the common values out and rewrite the above expression like the below:
=1/72 x (56/1+36/1)
=1/72 x (56 + 36)
step 7Simplify the above expression further:
=1/72 x 92
= 92/72
=23/18
7/9+4/8=23/18
Hence,
7/9 plus 4/8 equals to 23/18 in fraction.
7/9+4/8 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/9
Fraction B: 4/8
What to be found?
7/9+4/8 = ?
Find what's the sum of 7/9 and 4/8.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (7 x 8), find the product of numerator of Fraction B and denominator of Fraction A (4 x 9), and find the product of both denominators of Fraction A and Fraction B (9 x 8) and rewrite the equation as like the below:
= (7 x 8) + (4 x 9)/(9 x 8)
step 3 Simplify and rewrite the fraction:
= (56 + 36)/72
= 92/72
= 23/18
7/9+4/8 = 23/18
Hence,
7/9 plus 4/8 = 23/18