9/7 minus 3/4 as a fraction
9/7 - 3/4 as a fraction provides the detailed information about what is 9/7 minus 3/4 in fraction and decimal form, and the answer with steps to understand how it is being calculated by using different methods.
9/7-3/4 equals to
9/7 - 3/4 = (?)
9/7 - 3/4 = [(9 x 4) - (3 x 7)]/(7 x 4)
= (36 - 21)/28
= 15/28
9/7 - 3/4 = 15/28
9/7 minus 3/4 is equal to 15/28
where
9/7 is a fraction as a minuend,
3/4 is a fraction as a subtrahend,
15/28 is the difference between 9/7 and 3/4.
9/7 minus 3/4 as a decimal
9/7 - 3/4 = 15/28
15/28 = 0.5357
9/7-3/4 as a decimal is 0.5357
where
0.5357 is the difference between 9/7 and 3/4.
How-to: 9/7 - 3/4 = ?
1. LCM method,
2. Cross multiplication method.
Problem and Workout - LCM Method:
What is 9/7 minus 3/4 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/7
Fraction B: 3/4
What to be found?
9/7-3/4 = ?
Find what's the difference between 9/7 and 3/4.
step 2 Compare the denominators of fractions 9/7 and 3/4 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 9/7 and 3/4 are not equal, it is said to be unlike fractions subtraction.
step 3For unlike fractions subtraction, find the LCM (least common multiple) of both denominators of fractions 9/7 and 3/4:
The LCM of 7 and 4 is 28.
step 4 Write the fractions 9/7 and 3/4 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
=9/7-3/4
=(9 x 28)/(7 x 28)-(3 x 28)/(4 x 28)
step 5 Simplify the expression to have common denominator:
=36/28-21/28
step 6 Take the common values out and rewrite the above expression like the below:
=1/28 x (36/1-21/1)
=1/28 x (36 - 21)
step 7Simplify the above expression further:
=1/28 x 15
=15/28
9/7-3/4=15/28
Hence,
9/7 minus 3/4 equals to 15/28 in fraction.
Problem and Workout - Cross Multiplication Method
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/7
Fraction B: 3/4
What to be found?
9/7-3/4 = ?
Find what's the difference between 9/7 and 3/4.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (9 x 4), find the product of numerator of Fraction B and denominator of Fraction A (3 x 7), and find the product of both denominators of Fraction A and Fraction B (7 x 4) and rewrite the equation as like the below:
= (9 x 4) - (3 x 7)/(7 x 4)
step 3 Simplify and rewrite the fraction:
= (36 - 21)/28
9/7-3/4 = 15/28
Hence,
9/7 minus 3/4 = 15/28
