What is 9/10 minus 2/5? 9/10 - 2/5 as a fraction provides the detailed information about what is the difference between 9/10 and 2/5 in fraction and decimal form, and the answer with steps to understand how it is being calculated by using different methods.

9/10-2/5 equals to
9/10 - 2/5 = 1/2
Hence, 9/10 - 2/5 is equal to 1/2.
where
9/10 is a fraction as a minuend,
2/5 is a fraction as a subtrahend,
1/2 is the difference between 9/10 and 2/5.

9/10 minus 2/5 as a decimal
9/10 - 2/5 = 1/2
1/2 = 0.5
Hence, 9/10-2/5 can be written as 0.5 in decimal.
where
0.5 is the difference between 9/10 and 2/5.

For values other than 9/10 minus 2/5, use this below tool:

How-to: 9/10 - 2/5 = ?

The below workout with step by step calculation for subtracting 9/10 from 2/5 shows how to find what is the difference between 9/10 and 2/5. The difference of fractions 9/10 minus 2/5 can be obtained by using anyone of the two methods below:
1. LCM method,
2. Cross multiplication method.

Problem and Workout - LCM Method:
What is 9/10 minus 2/5 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/10
Fraction B: 2/5

What to be found?
9/10-2/5 = ?
Find what's the difference between 9/10 and 2/5.

step 2 Compare the denominators of fractions 9/10 and 2/5 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 9/10 and 2/5 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 9/10 and 2/5:
The LCM of 10 and 5 is 10.

step 4 Write the fractions 9/10 and 2/5 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
=9/10-2/5
=(9 x 10)/(10 x 10)-(2 x 10)/(5 x 10)

step 5 Simplify the expression to have common denominator:
=9/10-4/10

step 6 Take the common values out and rewrite the above expression like the below:
=1/10 x (9/1-4/1)
=1/10 x (9 - 4)

step 7Simplify the above expression further:
=1/10 x 5
= 5/10
=1/2
9/10-2/5=1/2

Hence,
9/10 minus 2/5 equals to 1/2 in fraction.

Problem and Workout - Cross Multiplication Method
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/10
Fraction B: 2/5

What to be found?
9/10-2/5 = ?
Find what's the difference between 9/10 and 2/5.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (9 x 5), find the product of numerator of Fraction B and denominator of Fraction A (2 x 10), and find the product of both denominators of Fraction A and Fraction B (10 x 5) and rewrite the equation as like the below:
= (9 x 5) - (2 x 10)/(10 x 5)

step 3 Simplify and rewrite the fraction:
= (45 - 20)/50
= 25/50
= 1/2
9/10-2/5 = 1/2
Hence,
9/10 minus 2/5 = 1/2 