Найдите значение выражения

1.
4 3/8 - 11/5 = 35/8 - 11/5 = 175/40 - 88/40=87/40
87/40 : 3/40 = 87/40 * 40/3 = 87/3 = 29.
2.
8^11= (2³)^11=2^33
32^(-2)= (2^5)^(-2)= 2^(-10)
4^7 = (2²)^7 = 2^14
2^33 * 2^(-10) = 2^23
2^23/2^14 = 2^9.