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First, find the LCD (Lowest Common Denominator)

7/8 - 2/5 =19/40

The lowest number that 8 and 5 will only divide into evenly is 40.

40/8=5 & 40/5=8

Second, multiply the top number by the same as the bottom number.

8*5=40 so 7*5=35 -> 7/8 = 35/40

Third, do the same for the other fraction in the equation.

5*8=40 so 2*8=16 -> 2/5 = 16/40

Fourth, now just subtract the top numbers.

35 16 19

---- - ---- = ---- is the solution.

40 40 40

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Q: How does seven eighths minus two fifths equal nineteen fortieths?
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Related questions

What is nineteen fortieths as a decimal?

19/40 is equal to 0.475


Is two fifths bigger than five eighths?

No. Two fifths is equal to 0.40, while five eighths is equal to .625


What is 2 fifths plus 7 eighths?

Expressed as a proper fraction in its simplest form, 2/5 + 7/8 = 1 11/40 or one and eleven fortieths. Expressed as a decimal fraction, this is equal to 1.275.


Is two fifths greater than two eighths?

VES one fifth is equal to .200 while one eighth is equal to .125 therefore 2 fifths is equal to .400 while 2 eighths is equal to .250 .


What is nineteen fifths as a decimal?

Expressed as a decimal, 19/5 is equal to 3.8.


What is 10.475 as a fraction in simplest form?

Expressed as a mixed number in its simplest form, 10.475 is equal to 10 19/40 or ten and nineteen fortieths.


What is four sevenths of five eighths?

Expressed as an improper fraction in its simplest form, 4/7 x 5/8 = 5/14. Expressed as a decimal fraction, this is equal to 0.357142857 recurring (that is, 0.357142857142857......;)


What is 0.475 as a mixed fraction?

Since 0.475 is less than 1, there is no need to express it as a mixed fraction. Expressed as a proper fraction in its simplest form, it is equal to 19/40 or nineteen fortieths.


What is 19.16 as a fraction?

Expressed as a mixed fraction in its simplest form, this is equal to 19 4/25 or nineteen and four twenty-fifths.


What is four tenths minus five eighths?

Expressed as a proper fraction in its simplest form, 4/10 - 5/8 = -9/40 or negative nine fortieths. Expressed as a decimal, this is equal to -0.225.


How is 0.76 written in fraction form?

Expressed as a proper fraction in its simplest form, 0.76 is equal to 19/25 or nineteen twenty-fifths.


How man eighths equal a fourth?

Two eighths equal a fourth.