Question

помогите решить!!!!!!!!!!

Answer 1

в)
$(6 times frac{5}{24} + 7 times frac{19}{24} ) - 6 times frac{19}{23} - 5 times frac{9}{23} = ((6 + 7) + ( frac{5}{24} + frac{19}{24} )) - frac{157}{23} - frac{124}{23} = (13 + 1) - frac{157}{23} - frac{124}{23} = 14 - frac{157}{23} - frac{124}{23} = frac{41}{23}$
в)
$(6 times frac{7}{12} + 8 times frac{5}{12} ) - 7 times frac{16}{21} - 4 times frac{6}{21} = ((6 + 8) + ( frac{7}{12} + frac{5}{12} )) - frac{163}{21} - frac{90}{21} = (14 + 1) - frac{163}{21} - frac{90}{21} = 15 - frac{163}{21} - frac{90}{21} = frac{62}{21}$
а)