Помогите... плиз...1) y÷51,6=11,2÷34,4 2) m÷25_6=4_7÷20_21 (_это дроб)
34.4у=51.6*11.2 34.4у=577.92 у=577.92:34.4 у=16.8 20/21m=25/6*4/7 20/21m=100/42 m=100/42:20/21=100/42*21/20 m=5/2=2.5 5 3/5x=3 1/2*5 1/4 28/5x=7/2*21/4 28/5x=147/8 x=147/8:28/5=147/8*5/28 x=735/224=3.28125