Answer:
1. 2
2. 5/36
3. 8 ¹/₆
4. - 4/11
Step-by-step explanation:
1.
2⁴/₅ + (-¹²/₁₅)
= ¹⁴/₅ - ¹²/₁₅
= ¹⁴/₅ - ⁴/₅
= 14 - 4
5
= 10/5
= 2
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2.
- 3/4 - (- 8/9)
= 5 / 36
-----------------------------
3.
- 3 ¹/₂ (- 2 ¹/₃)
= -7/2 * 7/3
= 7 * 7
2 * 3
= 49/6
= 8 ¹/₆
-----------------------------
4.
- 1/4 ÷ 11/16
= - 1/4 * 16/11
= - 16/44
= - 4/11
