Ответ: 1)3/10+5/12=[tex]\frac{3}{10} + \frac{5}{12}= \frac{36}{120}+ \frac{50}{120}= \frac{86}{120}= \frac{43}{60} [/tex]2)13/24-7/16=[tex] \frac{13}{24}+ \frac{7}{16}= \frac{208}{384}+ \frac{168}{384}= \frac{376}{384}= \frac{188}{192}= \frac{94}{96}= \frac{47}{48} [/tex]