Question

 приведите смешанные числа к наименьшему общему знаменателю 1 5/16 и 4  3/10,5 1/24 и 7 4/21,1 1/15, 3 5/24 и 2 3/40, 9 13/28, 2 5/8 и 3 1/6, 10 2/27, 5 1/12 и 2 5/8..... прошу помогите (((((((

Answer 1

$1 frac{5}{16} и 4 frac{3}{10} = 1*16+5 и 4*10+3 = frac{21}{5} и frac{43}{3}$
$frac{1}{24} и 7 frac{4}{21} = frac{1}{24} и 7*21+4 = frac{1}{24} и frac{151}{21}$
$1 frac{1}{15} = frac{16}{15}$
$3 frac{5}{24} и 2 frac{3}{40} = frac{77}{24} и frac{83}{40}$
$9 frac{13}{28} = frac{265}{28}$
$2 frac{5}{8} и 3 frac{1}{6} = frac{21}{5} и frac{19}{6}$
$10 frac{2}{27} =frac{272}{10}$
$5 frac{1}{12} и 2 frac{5}{8} = frac{61}{12} и frac{21}{8}$
все конец

Answer 2

1 5/16=21/16 *5= 105/80
4 3/10=43/10 *8=344/80

5 1/24=121/24*7=847/168
7 4/21=151/21 *8=1208/168


1 1/15=16/15*8=128/120
3 5/24=77/24*5=385/120
2 3/40=83/40=249/120

9 13/28=265/28*6=1590/168
2 5/8=21/8*21=441/168
3 1/6=19/6*28=532/168

10 2/27=272/27*8=2176/216
5 1/12=61/12*18=1098/216
2 5/8=21/8*27=567/216