Solve the following exercise:
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Solve the following exercise:
Let's try to find the lowest common denominator between 5 and 3
To find the lowest common denominator, we need to find a number that is divisible by both 5 and 3
In this case, the common denominator is 15
Now we'll multiply each fraction by the appropriate number to reach the denominator 15
We'll multiply the first fraction by 3
We'll multiply the second fraction by 5
Now we'll combine and get:
Without calculating, determine whether the quotient in the division exercise is less than 1 or not:
\( 5:6= \)
Because and represent different-sized pieces! It's like trying to add 2 slices of pizza cut into 5 pieces with 1 slice cut into 3 pieces. You need equal-sized pieces first.
Since 5 and 3 are both prime numbers, their LCD is simply 5 × 3 = 15. For other numbers, list multiples or use prime factorization to find the smallest common multiple.
Yes, always check! In this case, is already in simplest form because 11 and 15 share no common factors other than 1.
Great question! If denominators like 6 and 9 share factors, find their LCD using prime factorization. For 6 and 9, the LCD is 18 (not 6×9=54), making calculations easier.
You could, but fractions often give exact answers while decimals might be rounded. Plus, many math problems require fraction answers, so it's important to master this method!
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