(1.6² - 2.2 * 3/11) : 1.4 = 1.4 = 7/5 = 1 2/5
2.2 = 2 2/10 = 2 1/5 = 11/5
1.4 = 14/10 = 7/5
1.6 = 16/10 = 8/5
1. 2.2 * 3/11 = 11/5 * 3/11 = 3/5
2. 1.6² - 3/5 = (8/5)² - 3/5 = 64/25 - 15/25 = 49/25
3. 49/25 : 1.4 = 49/25 : 7/5 = 49/25 * 5/7 = 7/5 = 1.4
(1.6² - 2.2 * 3/11) : 1.4 = 1.4 = 7/5 = 1 2/5
2.2 = 2 2/10 = 2 1/5 = 11/5
1.4 = 14/10 = 7/5
1.6 = 16/10 = 8/5
1. 2.2 * 3/11 = 11/5 * 3/11 = 3/5
2. 1.6² - 3/5 = (8/5)² - 3/5 = 64/25 - 15/25 = 49/25
3. 49/25 : 1.4 = 49/25 : 7/5 = 49/25 * 5/7 = 7/5 = 1.4