Question

please answer all questions​

Answer 1

Answer:

4.solution

5/22+3/7+(-8/21)+(-6/11)

=5×7+3×22/154+(-8/21)+(-6/11)

=35+66/154+(-8/21)+(-6/11)

=101/154+(-8/21)+(-6/11)

=101×21+(-8)×154/2121+(-6/11)

=2121-1232/154+(-6/11)

=889/154+(-6/11)

=889×11+(-6×154)/14

=9779-924/14

=8855/14

=632.5