Числовое выражение а 6: (1/2+1/2); б12: (1/2+1/2+1/2+1/2); в(1/5+1/5+1/5)•1/3; г(2/7+2/7+2/7+2/7)•21/8

Question

Математика: Числовое выражение а 6: (1/2+1/2); б12: (1/2+1/2+1/2+1/2); в(1/5+1/5+1/5)•1/3; г(2/7+2/7+2/7+2/7)•21/8

Айка1111116789 · Answer

6:(1/2+1/2)=6:2/2=6:1=612:(1/2+1/2+1/2+1/2)=12:4/2=12:2=6(1/5+1/5+1/5)*1/3=3/5*1/3=1/5(2/7+2/7+2/7+2/7)*2 1/8=8/7*9/8=9/7=1 2/7...