138/40 as a Decimal and Mixed Number

138/40 as a decimal and mixed number expansion provides the detailed information about what is 138/40 in decimal and mixed number form, and the answer with steps help students to easily understand how it is being calculated.

138/40 as a Decimal
138/40 = 3.45
Hence,
138/40 as a decimal equals to 3.45
where,
138/40 is a given fraction,
The decimal expansion of 138/40 is 3.45

138/40 as a Mixed Number
138/40 = (120 + 18)/40
= 120/40 + 18/40
= 3 + 18/40
= 3 18/40
138/40 = 3 18/40

Hence,
138/40 as a mixed number is 3 ¹⁸/₄₀
where,
138/40 is a given fraction,
3 ¹⁸/₄₀ is the mixed number representation of 138/40.

The below work with steps provide the detailed information about how to convert fraction 138/40 as a decimal equivalent.
step 1 Address the input parameters and observe what to be found:
Input values:
The fraction = 138/40

What to be found:
Find the equivalent decimal expansion and mixed number for fraction 138/40.

step 2 The numerator is greater than the denominator of the fraction 138/40, so write the given fraction in the expression form in terms of denominator as like the below:
= 138/40
= 120 + 18/40
= (3 x 40) + 18/40

step 3 Make the above expression as individual fractions:
= (3 x 40)/40 + 18/40

step 4 Simplify the above expression:
= 3 x 40/40 + 18/40
= 3 + 18/40
= 3 + 9 x 2/20 x 2
= 3 + 9/20
3 + 9/20 can be written as a mixed number 3 ⁹/₂₀.


step 5 Find the decimal equivalent for the fractional part 9/20 in the above expression:
Multiply both numerator and denominator by 5 to make the denominator as powers of 10:
= 3 + (9/20 x 5/5)
= 3 + 45/100

step 6 Simplify the above expression further:
= 3 + 0.45
= 3.45
138/40 = 3.45

Hence,
138/40 as a decimal is 3.45
138/40 as a mixed number is 3 ⁹/₂₀