Question

Как вычитать дроби если первый знаменатель меньше второго

Answer 1

Знаменатель общий найти нужно и без разницы какой больше

Answer 2

$\frac{9}{20}- \frac{1}{30}= \frac{9*3-1*2}{60} = \frac{27-2}{60}= \frac{25}{60}= \frac{5}{12}$

Answer 3

Reading Fractions When the Denominator of the First Fraction is Smaller Than the Denominator of the Second Fraction

When the denominator of the first fraction is smaller than the denominator of the second fraction, you can still compare and perform operations on the fractions. Here's how you can do it:

1. Comparing Fractions: - To compare fractions with different denominators, you can find a common denominator and then compare the numerators. - If the denominators are different, you can find the least common multiple (LCM) of the denominators and convert both fractions to equivalent fractions with the LCM as the common denominator.

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2. Performing Operations on Fractions: - When adding or subtracting fractions with different denominators, you need to find a common denominator before performing the operation. - To add or subtract fractions with different denominators, find the least common multiple (LCM) of the denominators and then convert the fractions to equivalent fractions with the LCM as the common denominator.

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3. Example: - For example, if you have the fractions 4/18 and 1/5, you can compare and perform operations on them by finding a common denominator and then converting the fractions accordingly.

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In summary, when the denominator of the first fraction is smaller than the denominator of the second fraction, you can compare and perform operations on the fractions by finding a common denominator and converting the fractions accordingly.