25целых 1/4: (5 целых 1/2-3,5)- 16 целых 1/3:7

1) 5 1/2-3,5=5,5-3,5=2
2)25 1/4:2=101/4*1/2=101/8
3)16 1/3:7=49/3*1/7=7/3
4)101/8-7/3=(303-56)/24=247/24=10 7/24

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$1)5 \frac{1}{2} -3,5=5,5-3,5=2 \\ 2)25 \frac{1}{4} :2= \frac{101}{4} * \frac{1}{2} = \frac{101}{8} \\ 3)16 \frac{1}{3} :7= \frac{49}{3}* \frac{1}{7} = \frac{7}{3} \\ 4) \frac{101}{8} - \frac{7}{3} = \frac{303-56}{24} = \frac{247}{24} =10 \frac{7}{24}$