Question

How do you simplify `1 10/21 + 4 5/7`?

Answer 1

`6 4/21`

Explanation:

Before fractions can be added, they need to have the same denominators. The common denominator in this case is 21.

`color(red)(1) 10/21 + color(red)(4) color(blue)(5/7) " "(color(blue)(5/7 xx3/3 = 15/21))`

=`color(red)5 (10+color(blue)(15))/21`

=`5 25/21 = 5 +21/21+4/21`

=`6 4/21`