16.09-(-8.4)×(-7/12)-3.7^2 Плез подробно)

Question

16.09-(-8.4)×(-7/12)-3.7^2 Плез подробно)

Answer 1

16.09 - (-8.4)×(-7/12) - 3.7²
1) -8.4 = - 8 4/10 = -8 2/5 = -42/5
2) -42/5 × (-7/12) = (42×7)/(5×12) = (7×7)/(5×2) = 49/10 = 4.9
3) (-37/10)² = 1369/100 = 13.69
4) 16.09 - 4.9 - 13.69 = -2.5
Ответ: -2.5