how to subtract unlike denominator fractions?
16610
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. The LCM of 3 and 11 is 33 .
21544
['Find the smallest multiple (LCM) of both numbers.', 'Rewrite the fractions as equivalent fractions with the LCM as the denominator.']
19908
['Step 1: Make sure the bottom numbers (the denominators) are the same.', 'Step 2: Add the top numbers (the numerators), put that answer over the denominator.', 'Step 3: Simplify the fraction (if needed)']
1410436
['Things to remember:', 'Step 1: Find the multiple, to see which fraction we change.', 'Step 2: Multiply the top and bottom of the fraction by the same number to make the denominators the same.', 'Step 3: Add or subtract the fractions.']
502286
Rewrite the mixed numbers using the least common denominator. Since the fraction part of the second mixed number is larger than the fraction part of the first mixed number, regroup one as a fraction and rewrite the first mixed number. Write the subtraction expression in its new form. Subtract.
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.']
1082126
['Step 1: Make the denominators are the same. Find the common denominator. ... ', 'Step 2: Rewrite the fractions using the new denominators. In order to change the denominators, you must multiply the numerator and the denominator by the number it took to change the denominator.', 'Step 3: Subtract the numerators.']
1189933
['Put the numbers in a vertical column aligning the decimal points.', 'Subtract each column, starting on the right and working left. ... ', 'Place the decimal point in the answer directly below the decimal points in the terms.', 'Check the answer by adding.']
935071
Finding the difference between two fractions is much like finding the sum of two fractions in that you first find a common denominator and then you add or subtract the numerators.
1029117
Subtracting a Mixed Number From a Whole Number: Fraction Series - learn how to subtract a mixed number from a whole number. Method: convert the top number into fraction form; subtract the whole numbers; subtract the numerators; keep the denominator.
1087280
If the fraction parts of a mixed number have the same denominator and if we are subtracting a smaller fraction from a larger fraction, then the subtraction is straightforward: subtract the fractions and then subtract the whole numbers.
1190652
['Subtract 2/5 from 4/7. ... ', 'Subtract -6/7 from -5/8. ... ', 'Subtract -4/9 from 2/5. ... ', 'The sum of two rational numbers is -3/5.']
295746
The steps are the same whether you're adding or subtracting mixed numbers: Find the Least Common Denominator (LCD) Find the equivalent fractions. Add or subtract the fractions and add or subtract the whole numbers.
1413668
['Adding Fractions,', 'Subtracting Fractions,', 'Multiplying Fractions and.', 'Dividing Fractions.']
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.
19410
['Make sure the bottom numbers (the denominators) are the same.', 'Subtract the top numbers (the numerators). Put the answer over the same denominator.', 'Simplify the fraction (if needed).']
1396675
['Things to remember:', 'Step 1: Find a common multiple of the denominators.', 'HINT: The easiest way to do this is multiply the denominators together.', 'Step 2: Multiply the fractions so that the denominators the same.', 'Step 3: Add or subtract the new fractions.', 'Step 4: See if you can simplify.']