Grade 4 · Number and Operations—Fractions

CCSS.MATH.CONTENT.4.NF.C.5

Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100.

Read this standard on the official Common Core site

Lessons that teach this standard

• Tenths and Hundredths: Adding Fractions with Denominators 10 and 100

  Why every tenth is ten hundredths, how to rewrite a fraction with denominator 10 as one with denominator 100, and why that rewrite is what lets the two be added.