По действиям 3/5*4/9+1 1/3= 1 1/4*2/5-1/3= 1 2/5: - вопрос №502344135491131142513125573821315956 от 0070070070007 12.03.2022 00:10

Question

Математика: По действиям 3/5*4/9+1 1/3= 1 1/4*2/5-1/3= 1 2/5: 5/7+3/8= 2 1/3: 1 5/9-5/6=

0070070070007 · Answer

1.3/5*4/9+11/3=4/15+11/3=4/15+55/15=59/15=3,9
2.11/4*2/5-1/3=11/10-1/3=33/30-10/30=23/30=0,77
3.12/5:5/7+3/8=12/5*7/5+3/8=84/25+3/8=672/200+75/200=747/200=3,735
4.1/3:15/9-5/6=1/3*9/15-5/6=1/5-5/6=6/30-25/30=-19/30=-0,63