This video teaches you to subtract mixed numbers with borrowing. Consider 2 mixed numbers. For example 8 and 2/7 and the other 5 and 4/5.You have to subtract 5 and 4/5 from 8 and 2/7. First you have to convert the fractions to their common denominator. To equate the denominators of these two fractions you have to multiply the first denominator with the numerator and the denominator of the second fraction and also multiply the numerator and denominator of the first fraction with the denominator of the second. In this case you have to multiply 2*5/7*5 which is equal to 10/35 and 4*7/5*7 which is equal to 28/35.Now we have the mixed fractions as 8 and 10/35 and the other is 5 and 28/35.Now you know you cannot subtract 28 from 10.So you have to borrow 1 from 8 so now 8 becomes 7. Then the 1 that is borrowed is used to increase the numerator of the first fraction.1 is multiplied with the denominator 35 and then is added to the numerator 10 so now the fraction is 45/35 and now the first mixed number is 7 and 45/35. Now it will be appropriate to subtract 5 and 28/35 from 7 and 45/35. So when you subtract the whole numbers 75 you get 2 and then the fractions 45/35  28/35 you get 17/35. the whole answer is 2 and 17/35.
 Hot
 Latest

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find the slope of a line given 2 points with fractions

How To: Find the domain of a function in precalculus

How To: Calculate percent composition for chemistry

How To: Calculate Faster Than a Calculator

How To: Find the equation of a circle given: center & tangent

How To: Calculate the area of a parallelogram

How To: Solve inductive reasoning problems in math

How To: Find the Percent Given Two Numbers

How To: Find a number given Its percent

How To: Find the area & perimeter of triangles & squares

How To: Solve percentages without a calculator

How To: Find the area of a circle when you know the diameter

How To: Find the x & y intercepts of rational functions

How To: Solve problems involving deductive reasoning

How To: Find the value of a variable in an algebraic equation

How To: Derive the area of a circle

How To: Convert Fahrenheit to Celsius with a formula

How To: Find the formula of a piecewise function given a graph

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find the slope of a line given 2 points with fractions

How To: Find the domain of a function in precalculus

How To: Calculate percent composition for chemistry

How To: Calculate Faster Than a Calculator

How To: Find the equation of a circle given: center & tangent

How To: Calculate the area of a parallelogram

How To: Solve inductive reasoning problems in math

How To: Find the Percent Given Two Numbers

How To: Find a number given Its percent

How To: Find the area & perimeter of triangles & squares

How To: Solve percentages without a calculator

How To: Find the area of a circle when you know the diameter

How To: Find the x & y intercepts of rational functions

How To: Solve problems involving deductive reasoning

How To: Find the value of a variable in an algebraic equation

How To: Derive the area of a circle

How To: Convert Fahrenheit to Celsius with a formula

How To: Find the formula of a piecewise function given a graph
Be the First to Comment
Share Your Thoughts