Answer:
1. 2/5 + 2/10
2 × 2 2 × 1 4 2 6 3
-------- + ------- = ---- + ---- = ---- = ----
5 × 2 10 × 1 10 10 10 5
2. 3/4 + 1/6
3 × 3 1 × 2 9 2 11
------- + -------- = ---- + ---- = ----
4 × 3 6 × 2 12 12 12
3. 5/36 + 3/12
5 × 1 3 × 3 5 9 14 7
--------- + ---------- = ----- + ----- = ----- = ----
36 × 1 12 × 3 36 36 36 18
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Answer:
1. 2/5 + 2/10
2 × 2 2 × 1 4 2 6 3
-------- + ------- = ---- + ---- = ---- = ----
5 × 2 10 × 1 10 10 10 5
2. 3/4 + 1/6
3 × 3 1 × 2 9 2 11
------- + -------- = ---- + ---- = ----
4 × 3 6 × 2 12 12 12
3. 5/36 + 3/12
5 × 1 3 × 3 5 9 14 7
--------- + ---------- = ----- + ----- = ----- = ----
36 × 1 12 × 3 36 36 36 18