15/1 + 2/7 as a fraction

Learn how to find what is 15/1 plus 2/7 in fraction form just in a few minutes. We have covered the easiest method to write 15/1 + 2/7 as a fraction and decimal.

Summary: 15/1 plus 2/7 = 107/7
Since both fractions have unequal denominators, 15/1 plus 2/7 is an unlike fractions addition. For adding unlike fractions, you have to first find the equivalent fractions for fraction 15/1 and fraction 2/7 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 1 and 7. 7 is the LCM of 1 and 7. Multiplying the LCM 7 with the numerators and denominators of both fractions (15/1 x 7/7) + (2/7 x 7/7), and simplify further in order to have the common denominator. So the equivalent fraction for 15/1 is 105/7 and for 2/7 is 2/7. By simplifying this fraction addition 105/7 + 2/7, it becomes 107/7.

CALCULATION: 15/1 + 2/7 as a fraction
15/1 + 2/7 = (?)
15/1 + 2/7 = [(15 x 7) + (2 x 1)]/(1 x 7)
= (105 + 2)/7
= 107/7
15/1 + 2/7 = 107/7
15/1 plus 2/7 as a fraction is 107/7.

where
15/1 is a improper fraction as an addend,
2/7 is a proper fraction as an addend,
107/7 is the sum of 15/1 and 2/7.

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15/1 plus 2/7 as a decimal
15/1 + 2/7 = 107/7
107/7 = 15.2857
(15/1) + (2/7) as a decimal is 15.2857

where
15.2857 is the sum of 15/1 and 2/7.

The below workout with step by step calculation shows how to find the equivalent fraction between 15/1 and 2/7 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 15/1 plus 2/7 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.

(15/1) + (2/7) using LCM Method:
What is 15/1 plus 2/7 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 15/1
Fraction B: 2/7

What to be found?
(15/1) + (2/7) = ?
Find what's the sum of 15/1 and 2/7.

step 2 Compare the denominators of fractions 15/1 and 2/7 to identify whether it is a like or unlike fraction addition. Since the denominators of given fractions 15/1 and 2/7 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 15/1 and 2/7:
The LCM of 1 and 7 is 7.

step 4 Write the fractions 15/1 and 2/7 in the addition expression form and multiply LCM with all the numerators and denominators of both fractions.
= 15/1 + 2/7
= [(15 x 7)/(1 x 7)] + [(2 x 7)/(7 x 7)]

step 5 Simplify the expression to have common denominator:
= 105/7 + 2/7

step 6 Take the common values out and rewrite the above expression like the below:
= 1/7 x (105/1 + 2/1)
= 1/7 x (105 + 2)

step 7Simplify the above expression further:
= 1/7 x 107
= 107/7
15/1 + 2/7 = 107/7

Hence,
15/1 plus 2/7 as a fraction is 107/7.

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15/1 + 2/7 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 15/1
Fraction B: 2/7

What to be found?
(15/1)+(2/7) = ?
Find what's the sum of 15/1 and 2/7.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (15 x 7), find the product of numerator of Fraction B and denominator of Fraction A (2 x 1), and find the product of both denominators of Fraction A and Fraction B (1 x 7) and rewrite the equation as like the below:
= (15 x 7) + (2 x 1)/(1 x 7)

step 3 Simplify and rewrite the fraction:
= (105 + 2)/7
15/1 + 2/7 = 107/7

Hence,
15/1 plus 2/7 in fraction is 107/7