Question

12 /15 + 37 /37- 21/ 37​

Answer 1

Ответ: 1   129/555

Решение

$\frac{12}{15}+\frac{37-21}{37}=\frac{12}{15}+(\frac{37-21}{37}) =\frac{12}{15} +\frac{16}{37}=\frac{12*37+16*15}{15*37}=\frac{444+240}{555} =\frac{684}{555}= 1\frac{129}{555}$