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5 votes
I need help with adding and subtracting fractions

WHAT IS 3/8-3/9 ? I NEED TO SHOW MY WORK

User Fustigador
by
8.0k points

2 Answers

2 votes
answer is 3/72

multiply the denominator and numerator of 3/8 by 9 (27/72)
multiply the denominator and numerator of 3/9 by 8 (24/72)

this is to get the same denominator of 72

then just subtract
27/72 - 24/72 = 3/72

User Jesper Juhl
by
7.9k points
3 votes
Answer:
The result is 1/24

Step-by-step explanation:
First step is to get the common denominator:
The common denominator here will be 8*9 = 72
Therefore:
3/8 = 27/72
3/9 = 24/72

Second step is to do the subtraction:
27/72 - 24/72 = (27-24) / 72 = 3/72

The last step is to simplify the result:
3/72 = 1/24

Hope this helps :)
User Simon Smith
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7.8k points