Пошаговое объяснение:
3/5 *7=(3*7)/5=21/5=4цел 1/5
7/11*3/4=(7*3)/(11*4)=21/44
3/20*5/6=(3*5)/(20*6)=1/8
2цел 1/2 *1цел3/4=5/2*7/4=(5*7)/(2*4)=35/8=4цел 3/8
1цел 1/3*3цел 2/3=4/3*11/3=(4*11)/(3*3)=44/9=4цел 8/9
1) 3/5 * 7 7/11 * 3/4 = 3/5 * 84/11 * 3/4 = 3/5 * 21/11 * 3/1 = 3*21*3/5*11*1 = 189/55 = 3 24/55
2) 3/20 * 5/6 = 1/4 * 1/2 = 1/8
3) 2 1/2 * 1 3/4 = 5/2 * 7/4 = 5*7/2*4 = 35/8 = 4 3/8
4) 1 1/3 * 3 2/3 = 4/3 * 11/3 = 4*11/3*3 = 44/9 = 4 8/9
Пошаговое объяснение:
3/5 *7=(3*7)/5=21/5=4цел 1/5
7/11*3/4=(7*3)/(11*4)=21/44
3/20*5/6=(3*5)/(20*6)=1/8
2цел 1/2 *1цел3/4=5/2*7/4=(5*7)/(2*4)=35/8=4цел 3/8
1цел 1/3*3цел 2/3=4/3*11/3=(4*11)/(3*3)=44/9=4цел 8/9
1) 3/5 * 7 7/11 * 3/4 = 3/5 * 84/11 * 3/4 = 3/5 * 21/11 * 3/1 = 3*21*3/5*11*1 = 189/55 = 3 24/55
2) 3/20 * 5/6 = 1/4 * 1/2 = 1/8
3) 2 1/2 * 1 3/4 = 5/2 * 7/4 = 5*7/2*4 = 35/8 = 4 3/8
4) 1 1/3 * 3 2/3 = 4/3 * 11/3 = 4*11/3*3 = 44/9 = 4 8/9