Verified answer

0,25 = 1/4

10² = 100

(1² + 3)² = 4² = 16

((1/4)/100)/16 = (1/400)/16 = 1/6400

pronto

(25/100:10²):(1²+3)²=

(1/4*1/100):(1+3)²=

(1/400):4²=

(1/400):16=

1/400*1/16=

1/6400=

(0,25:100):(1+6+9)

0,0025:16=0,00015625