### Home > ACC6 > Chapter 3 Unit 3 > Lesson CC1: 3.1.3 > Problem3-48

3-48.

Which of the following fractions could you add together easily? Explain.

$\frac { 5 } { 7 }$, $\frac { 2 } { 3 }$, $\frac { 1 } { 4 }$, $\frac { 4 } { 3 }$, $\frac { 7 } { 5 }$, $\frac { 1 } { 2 }$, $\frac { 9 } { 10 }$, $\frac { 1 } { 5 }$, $\frac { 5 } { 6 }$, $\frac { 1 } { 7 }$, $\frac { 2 } { 2 }$

Fractions are easiest to add together when they have the same denominator. Which fractions share denominators? Which fractions could be easily converted so that they have common denominators?