Adding fractions

positives

100

 3/4+ 7/24? 

what is 1 1/24

200

6/7+5/21=

what is 1 2/21

300

the third step of adding fractions.

what is simplify

400

3/5+5/20=? 

17/20

500

3/16+1/8=?

5/16

negatives

100

-1/3+-5/8

-23/24

200

-3/8+-11/12

-1 7/24

300

−3/4+−1/24=

−19/24

400

−1/3+−3/7=−16/21

−16/21

500

−5/12+−3/5=

−1 1/60

both

100

-1/3+3/7

2/21

200

−5/6+3/5=

−7/30

300

1/6+−5/12=

−1/4

400

1/10+−2/3=

−17/30

500

2/7+−2/5=

−4/35