Question

50 БАЛЛОВ!
1) 6 * 718
2) 5целых 35 *37
3) 1цел 78 * 1цел 115 * 1цел 716

Answer 1

$6* frac{7}{18} = frac{6*7}{18} = frac{1*7}{3} = frac{7}{3} = 2frac{1}{3} \ 5 frac{3}{5} * frac{3}{7} = frac{28}{5} * frac{3}{7} = frac{28*3}{5*7} = frac{4*3}{5*1} = frac{12}{5} =2 frac{2}{5} \ 1 frac{7}{8} *1 frac{1}{15} * 1frac{7}{16} = frac{15}{8}* frac{16}{15} * frac{23}{16} = frac{15*16*23}{8*15*16} = frac{1*1*23}{8*1*1} = frac{23}{8} = 2frac{7}{8}$