Penjelasan dengan langkah-langkah:

1. 3/5 + 4 9/10 – 1/3

= 3/5 + 49/10 – 1/3

= (3 × 10)/(5 × 10) + (49 × 5)/(10 × 5) – 1/3

= 30/50 + 245/50 – 1/3

= 275/50 – 1/3

= (275 × 3)/(50 × 3) – (1 × 50)/(3 × 50)

= 825/150 – 50/150

= 775/150

= (775 ÷ 25)/(150 ÷ 25)

= 31/6

= 5 1/6 ✓

2. 11/6 – 1 3/4 + 5/3

= 11/6 – 7/4 + 5/3

= (11 × 4)/(6 × 4) – (7 × 6)/(4 × 6) + 5/3

= 44/24 – 42/24 + 5/3

= 2/24 + 5/3

= 1/12 + 5/3

= 1/12 + 20/12

= 21/12

= (21 ÷ 3)/(12 ÷ 3)

= 7/4

= 1 3/4 ✓

3. 10 + (5 2/5 - 5/2)

= 10/1 + (27/5 - 5/2)

= 10/1 + (54/10 - 25/10)

= 10/1 + 29/10

= 100/10 + 29/10

= 129/10

= 12 9/10 ✓

4. 6/5 ÷ 1/6 × 7/5

= 6/5 × 6/1 × 7/5

= (6 × 6 × 7)/(5 × 1 × 5)

= 252/25

= 10 2/25 ✓

5. 5/8 × (1/7 ÷ 3/2)

= 5/8 × (1/7 × 2/3)

= 5/8 × 2/21

= 10/168

= (10 ÷ 2)/(168 ÷ 2)

= 5/84 ✓

6. 8/5 × 4/3 ÷ 2 1/7

= 32/15 ÷ 2 1/7

= 32/15 ÷ 15/7

= 32/15 × 7/15

= 224/225 ✓