Question

1 РЕШИТЕ ПЛИИИЗ!!!а) 6 7/5 - 3 9/10= б) 2 9/35 + 1 9/14=г) 4 1/26 - 3 8/39= 2 РЕШИТЕ УРАВНЕНИЯ: а) 8 - y = 4 1/7 б) 4 3/8 + x = 6 1/8

Answer 1

А)37/5-39/10=74/10-39/10=35/10=7/2=3 1/2
б)79/35+23/14=158/70+115/70=273/70=
3 63/70=3 9/10
г)108/26-12/39=324/78-24/78=300/78=
100/26=3 22/26=3 12/13


8-у=4 1/7
у=8-4 1/7
у=7 7/7-4 1/7
у=3 6/7

Answer 2

а) 6 7/5 - 3 9/10 = 6 + 7/5 - 3 - 9/10 = 6 - 3 + 7/5 - 9/10 = 3 + 7/5 - 9/10 = 3 + 14/10 - 9/10 = 3 + 5/10 = 3 1/2

б) 2 9/35 + 1 9/14 = 2 + 9/35 + 1 + 9/14 = 2 + 9/35 + 1 + 9/14 = 2 + 18/70 + 35/70 + 45/70 = 3 + 45/70 = 3 9/14

г) 4 1/26 - 3 8/39 = 4 + 1/26 - 3 - 8/39 = 4 - 3 + 1/26 - 8/39 = 1 + 1/26 - 8/39 = 1 + 39/1014 - 416/1014 = 1 - 377/1014 = 1 637/1014

а) 8 - y = 4 1/7 -y = 4 1/7 - 8 -y = 29/7 - 56/7 -y = -27/7 y = 27/7

б) 4 3/8 + x = 6 1/8 x = 6 1/8 - 4 3/8 x = 49/8 - 35/8 x = 14/8 x = 7/4