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100

4/10 + 5/10?

What is 9/10

100

9/20-4/20?

What is 5/20.

100

3/5 x 2/10?

What is 6/50.

100

3/12 / 1/4?

What is 1.

100

1/4 + 2/4?

What is 3/4.

200

6/9+3/4?

What is 51/36 or 1 15/36

200

7/9-4/7?

What is 6/36.

200

6/12 x 1/9?

what is 6/108.

200

5/4 / 3/6?

What is 30/12 or 2 6/12.

200

1/8 x 9/9?

What is 9/72.

300

4/20+5/10?

what is 14/20.

300

6/12-4/8?

What is 0.

300

4/8 x 2/11?

What is 8/88.

300

5/10 / 2/20?

What is 100/20 or 5.

300

2/4 / 2/4?

What is 1.

400

4/20+6/30?

What is 24/60.

400

10/11-5/9?

What is 35/99.

400

3/15 x 1/6?

What is 3/90.

400

6/7 / 9/10?

What is 60/63.

400

9/20-6/20?

What is 3/20.

500

7/9+1/10?

What is 79/90.

500

19/10-4/5?

What is 11/10 or 1 1/10.

500

2/5 x 1/12?

What is 2/60.

500

6/7 / 3/3?

What is 21/36

500

11/10 + 17/19?

What is 280/190 or 1 90/190.