how to subtract proper fractions with different denominators?
62554
['Cross-multiply the two fractions and subtract the second number from the first to get the numerator of the answer. For example, suppose you want to subtract 6/7 – 2/5. ... ', 'Multiply the two denominators together to get the denominator of the answer. 7 5 = 35.', 'Putting the numerator over the denominator gives you your answer.']
788393
Subtract the whole number of the smaller mixed number from the whole number of the new larger mixed number. If the proper fractions have similar denominators, subtract the numerators directly and remain the denominator as it is.
767353
['Build each fraction (if needed) so that both denominators are equal.', 'Add the numerators of the fractions.', 'The new denominator will be the denominator of the built-up fractions.', 'Reduce or simplify your answer, if needed. Factor the numerator.']
79003
['Find the lowest common multiple of the denominators. ... ', 'Convert each fraction to an equivalent fraction that has the LCD as its denominator. ... ', 'Add the numerators and place over the common denominator.', 'Simplify the result by reducing it to lowest terms.']
45026
To do this, give the whole number a denominator of 1. Convert to fractions of like denominators. The original fraction's denominator is also the least common denominator (LCD) of the two fractions. Multiply the top and bottom of the "whole number fraction" by this number so the fractions have the same denominator.
338172
Since you're trying to subtract a larger fraction from a smaller one, you need to "borrow" a one from the integer 4, change it to 15/15, and add it to the fraction. Now the problem becomes 3 20/15 minus 3 9/15 and the answer is 11/15.
229836
['To add or subtract rational expressions with unlike denominators, first find the LCM of the denominator. ... ', 'Write each expression using the LCD. ... ', 'Add or subtract the numerators.', 'Simplify as needed.']
455615
['Convert the mixed numbers to improper fractions.', 'Use the algebraic formula for subtraction of fractions: a/b - c/d = (ad - bc) / bd.', 'Reduce fractions and simplify if possible.']
1147204
First Method Convert the mixed number into an improper fraction. If the proper fractions have unlike denominators, get the LCD and change the fractions into equivalent fractions using the LCD as the denominator. Subtract the numerators and remain the LCD as the denominator. Reduce to lowest terms.
941560
['input fractions, mixed numbers or whole numbers;', 'select. "+" - for addition fractions, "-" - for subtraction fractions, "×" - for multiplication fractions, "÷" - for division fractions;', 'press button ( "=" ).']
121243
To subtract fractions with unlike denominators, rename the fractions with a common denominator. Then subtract and simplify. The LCM of 3 and 11 is 33 .
1024336
['Leave the first fraction in the equation alone.', 'Turn the division sign into a multiplication sign.', 'Flip the second fraction over (find its reciprocal).', 'Multiply the numerators (top numbers) of the two fractions together. ... ', 'Multiply the denominators (bottom numbers) of the two fractions together.']
517851
Given two or more fractions with unlike denominators, the LCD is the least common multiple of the denominators. Find the least common denominator. Make equivalent fractions using the LCD. Add or subtract the numerators.
183718
Write both fractions as equivalent fractions with a denominator of 15. Since you're trying to subtract a larger fraction from a smaller one, you need to "borrow" a one from the integer 4, change it to 15/15, and add it to the fraction. Now the problem becomes 3 20/15 minus 3 9/15 and the answer is 11/15.
290936
Step 1: Find the Lowest Common Multiple (LCM) between the denominators. Step 2: Multiply the numerator and denominator of each fraction by a number so that they have the LCM as their new denominator. Step 3: Add or subtract the numerators and keep the denominator the same.
587065
To do this, you need to find the least common multiple (LCM) of the two denominators. To subtract fractions with unlike denominators, rename the fractions with a common denominator. Then subtract and simplify.
84378
Make their denominators equal using the concept of least common multiple. Then subtract their numerators accordingly. Rewrite each fraction to its equivalent fraction with a denominator equal to the LCM = 30, then subtract their numerators. Make sure to reduce your answer to the lowest term.