Question

ппппппппппппжжжжжжжжжжжжжжжжж народ помогите

Answer 1

$( frac{7}{20} - frac{35}{8}) - ( - frac {1}{30} - frac{35}{8})$

$( - frac{161}{40}) - ( - frac{529}{120})$

$- frac{161}{40} + frac{529}{120}$

$frac{23}{60}$

Answer 2

маленькая поправочка не 23/60 а 23/30

Answer 3

(7/20 - 4 3/8) - (-1/30 - 4 3/8) = (0.35 - 4.375) - (-4/120 - 4 45/120) = -4.025 - (-4 49/120) = -4 1/40 + 4 49/120 = -4 3/120 + 4 49/120 = 23/60

Answer 4

23/60