body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

4. Add and Subtract Unlike Fractions

Finish the assignment

Continue to next subchapter

Exercise 4 Page 295

To add or subtract fractions, they need to have the same denominator.

- 1 110

Practice makes perfect

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. (- 7/10) - 2/5Since 10 is a multiple of 5, we can multiply both the numerator and denominator of 25 by 2 to create a common denominator.

(- 7/10)-2/5

a/b=a * 2/b * 2

(- 7/10)-2 * 2/5 * 2

Multiply

(- 7/10)-4/10

Now that we have a common denominator, we can proceed to simplifying the expression.

(- 7/10)-4/10

MoveNegFracToNum

Put minus sign in numerator

-7/10-4/10

Subtract fractions

-7-4/10

Subtract term

-11/10

MoveNegNumToFrac

Put minus sign in front of fraction

- 11/10

Calculate quotient

- 1 110

Subchapter links

Guided Practice p.294

Independent Practice p.295-296

H.O.T. Problems p.296

Standardized Test Practice p.296-298

Extra Practice p.297

Common Core Review p.298