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    1/7 minus 1/8 as a fraction

    Fraction Subtraction Calculator

    1/7 - 1/8 as a fraction provides the detailed information about what is 1/7 minus 1/8 in fraction and decimal form, and the answer with steps to understand how it is being calculated by using different methods.

    1/7-1/8 equals to
    1/7 - 1/8 = (?)
    1/7 - 1/8 = [(1 x 8) - (1 x 7)]/(7 x 8)
    = (8 - 7)/56
    = 1/56
    1/7 - 1/8 = 1/56
    1/7 minus 1/8 is equal to 1/56

    where
    1/7 is a fraction as a minuend,
    1/8 is a fraction as a subtrahend,
    1/56 is the difference between 1/7 and 1/8.

    1/7 minus 1/8 as a decimal
    1/7 - 1/8 = 1/56
    1/56 = 0.0179
    1/7-1/8 as a decimal is 0.0179
    where
    0.0179 is the difference between 1/7 and 1/8.

    For values other than 1/7 minus 1/8, use this below tool:

    How-to: 1/7 - 1/8 = ?

    The below workout with step by step calculation shows how to find what is 1/7 minus 1/8 in simplest form by using the following methods:
    1. LCM method,
    2. Cross multiplication method.

    Problem and Workout - LCM Method:
    What is 1/7 minus 1/8 as a fraction?

    step 1 Observe the input parameters and what to be found:
    Input:
    Fraction A: 1/7
    Fraction B: 1/8

    What to be found?
    1/7-1/8 = ?
    Find what's the difference between 1/7 and 1/8.


    step 2 Compare the denominators of fractions 1/7 and 1/8 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 1/7 and 1/8 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 1/7 and 1/8:
    The LCM of 7 and 8 is 56.


    step 4 Write the fractions 1/7 and 1/8 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
    =1/7-1/8
    =(1 x 56)/(7 x 56)-(1 x 56)/(8 x 56)


    step 5 Simplify the expression to have common denominator:
    =8/56-7/56


    step 6 Take the common values out and rewrite the above expression like the below:
    =1/56 x (8/1-7/1)
    =1/56 x (8 - 7)


    step 7Simplify the above expression further:
    =1/56 x 1
    =1/56
    1/7-1/8=1/56

    Hence,
    1/7 minus 1/8 equals to 1/56 in fraction.



    Problem and Workout - Cross Multiplication Method
    step 1 Observe the input parameters and what to be found:
    Input:
    Fraction A: 1/7
    Fraction B: 1/8

    What to be found?
    1/7-1/8 = ?
    Find what's the difference between 1/7 and 1/8.

    step 2 Find the product of numerator of Fraction A and denominator of Fraction B (1 x 8), find the product of numerator of Fraction B and denominator of Fraction A (1 x 7), and find the product of both denominators of Fraction A and Fraction B (7 x 8) and rewrite the equation as like the below:
    = (1 x 8) - (1 x 7)/(7 x 8)

    step 3 Simplify and rewrite the fraction:
    = (8 - 7)/56
    1/7-1/8 = 1/56
    Hence,
    1/7 minus 1/8 = 1/56

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