Answer:
Simplified Solution = 3 / 5
Explanation:
Take a look at the procedure below;
![- ( - 7 / 10 - 3 / 5 ) - ( 1 / 6 + 2 / 3 ) - ( - 2 / 15 ),\\7 / 10 + 3 / 5 - 1 / 6 - 2 / 3 + 2 / 15,\\7 / 10 + 6 / 10 - 1 / 6 - 4 / 6 + 2 / 15,\\\\13 / 10 - 5 / 6 + 2 / 15\\39 / 30 - 25 / 30 + 4 / 30\\18 / 20\\3 / 5 \\\\Conclusion, 3 / 5](https://img.qammunity.org/2021/formulas/mathematics/middle-school/n5as4uyvzkighf8tj0v4lxrsskxm9cwxdh.png)
For the first step we applied the distributive property, simplify the expression. Taking the LCM of fractions, we derived similar fractions of like denominators. Adding / Subtracting, we got a further simplified solution ⇒ 3 / 5