What is 7/9 plus 4/15 in fraction?
7/9 plus 4/15 equals to 47/45 in fraction form.
Learn how to find what is 7/9 plus 4/15 in fraction form just in a few minutes. We have covered the easiest method to write 7/9 + 4/15 as a fraction and decimal.
Summary: 7/9 plus 4/15
Since both the fractions have the unequal denominators, you have to find the equivalent fractions for 7/9 and 4/15 having identical denominators before starting adding the fractions. Find the LCM of denominators, 45 is the LCM of 9 and 15. Multiply the LCM 45 with all the numerators and denominators of both fractions (7/9 x 45/45) + (4/15 x 45/45) and simplify further in order to have the common denominators. By simplifying the fraction addition expression becomes 47/45.
The below workout with step by step calculation shows how to find the equivalent fraction between 7/9 and 4/15 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 7/9 plus 4/15 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.
7/9+4/15 using LCM Method:
What is 7/9 plus 4/15 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/9
Fraction B: 4/15
What to be found?
7/9+4/15 = ?
Find what's the sum of 7/9 and 4/15.
step 2 Compare the denominators of fractions 7/9 and 4/15 to identify whether it is a like or unlike fraction addition. Since the denominators of given fractions 7/9 and 4/15 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 4/15:
The LCM of 9 and 15 is 45.
step 4 Write the fractions 7/9 and 4/15 in the addition expression form and multiply LCM with all the numerators and denominators of both fractions.
=7/9+4/15
=(7 x 45)/(9 x 45)+(4 x 45)/(15 x 45)
step 5 Simplify the expression to have common denominator:
=35/45+12/45
step 6 Take the common values out and rewrite the above expression like the below:
=1/45 x (35/1+12/1)
=1/45 x (35 + 12)
step 7Simplify the above expression further:
=1/45 x 47
=47/45
7/9+4/15=47/45
Hence,
7/9 plus 4/15 equals to 47/45 in fraction.
7/9+4/15 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/9
Fraction B: 4/15
What to be found?
7/9+4/15 = ?
Find what's the sum of 7/9 and 4/15.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (7 x 15), 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 15) and rewrite the equation as like the below:
= (7 x 15) + (4 x 9)/(9 x 15)
step 3 Simplify and rewrite the fraction:
= (105 + 36)/135
= 141/135
= 47/45
7/9+4/15 = 47/45
Hence,
7/9 plus 4/15 = 47/45